Librería: GreatBookPrices, Columbia, MD, Estados Unidos de America
EUR 10,24
Cantidad disponible: Más de 20 disponibles
Añadir al carritoCondición: New.
Librería: GreatBookPrices, Columbia, MD, Estados Unidos de America
EUR 11,43
Cantidad disponible: Más de 20 disponibles
Añadir al carritoCondición: As New. Unread book in perfect condition.
Idioma: Inglés
Publicado por The University of Chicago Press, 1949
Librería: Black Cat Books, Shelter Island, NY, Estados Unidos de America
EUR 17,77
Cantidad disponible: 1 disponibles
Añadir al carritoHardcover. Condición: Very Good. No Jacket. Inscribed by Director Wilfred J Paul to the previous owner on the half title page. Hardbound, no dust jacket. Vol. 2 only. Minor wear to boards, otherwise very good.
Librería: GreatBookPricesUK, Woodford Green, Reino Unido
EUR 15,88
Cantidad disponible: Más de 20 disponibles
Añadir al carritoCondición: New.
Idioma: Inglés
Publicado por Duell, Sloan & Pearce, 1961 Edition, 1961
ISBN 10: 1258357410 ISBN 13: 9781258357412
Librería: KULTURAs books, Los Angeles, CA, Estados Unidos de America
Original o primera edición
EUR 30,66
Cantidad disponible: 1 disponibles
Añadir al carritoHardcover. Condición: Very Good+. Stated First Edition. Hardcover. Blue cloth boards, clean, with general shelf wear. Book firm in binding, 828 pages include Index, b&w photographs and map illustrations. Free of any markings, not ex-library. ; Large 8vo 9" - 10" tall; 828 pages.
Librería: GreatBookPricesUK, Woodford Green, Reino Unido
EUR 17,74
Cantidad disponible: Más de 20 disponibles
Añadir al carritoCondición: As New. Unread book in perfect condition.
Publicado por Office of Air Force History
Librería: Wonder Book, Frederick, MD, Estados Unidos de America
EUR 17,73
Cantidad disponible: 1 disponibles
Añadir al carritoCondición: Fair. Acceptable condition. (Korean War, US Air Force, Aerial Operations) A readable, intact copy that may have noticeable tears and wear to the spine. All pages of text are present, but they may include extensive notes and highlighting or be heavily stained. Includes reading copy only books.
Publicado por Office of Air Force History
Librería: Wonder Book, Frederick, MD, Estados Unidos de America
EUR 17,73
Cantidad disponible: 1 disponibles
Añadir al carritoCondición: Very Good. Very Good condition. (Vietnam War, US Air Force, Aerial Operations) A copy that may have a few cosmetic defects. May also contain light spine creasing or a few markings such as an owner's name, short gifter's inscription or light stamp.
Publicado por Berlin Selbstverlag 1961 0, 1961
Librería: Fast alles Theater! Antiquariat für die darstellenden Künste, Berlin, Alemania
EUR 9,20
Cantidad disponible: 1 disponibles
Añadir al carritoOBroschur. Condición: Sehr gut. 16 unpag. S., 4-seit. Falteinleger mit Stab u. Besetzung, geheft. OBroschur, 8°. Mit Fotoportraits der Autoren u. je 1 Szenenfoto. Texte: Höchstpersönliche Beobachtungen (N. F. Simpson). Was hülfe es dem Menschen. [über O'Neill]. Dazu zahlr. Szenenfotos zu div. Insz. des Schloßpark-Theaters, u.a.: Raskolnikoff. Die Pariser Komödie. Eine Dummheit macht auch der Gescheiteste. Einband etwas fleckig berieben. Sehr gutes Exemplar. Broschüre.
Publicado por New York: Duell, Sloan & Pearce
Librería: Auldfarran Books, IOBA, Decatur, GA, Estados Unidos de America
Miembro de asociación: IOBA
Original o primera edición
EUR 22,21
Cantidad disponible: 1 disponibles
Añadir al carritoHardcover. Condición: Very Good. Estado de la sobrecubierta: Good. 1st Edition. 1961 1st ed. 774pp. illus. teal cloth sm 4to: Very Good in a generally Good dj in Brodart poly cover [dj = edge nicked & torn; else G] This massive volume was the official Air Force history of the Korean War. Includes 59 photographs and 26 maps.
Publicado por CHICAGO UNIVERSITY, 1953
Librería: Princeton Antiques Bookshop / Ruffolo Enterprises, Atlantic City, NJ, Estados Unidos de America
EUR 22,21
Cantidad disponible: 1 disponibles
Añadir al carritoHARDBACK BLUE. General wear, faded gilt to cover and spine, loose spine, liquid stains to base edge, coloured orange top edge, agetoned spine DATE PUBLISHED: 1953 EDITION: 947.
Publicado por Arno Press, New York, 1968
Librería: Second Story Books, ABAA, Rockville, MD, Estados Unidos de America
EUR 23,33
Cantidad disponible: 1 disponibles
Añadir al carritoHardcover. Quarto, xii, 210 pages. In Very Good minus condition. Spine is black with silver print. Boards in black cloth. Light wear to spine caps and corners. Illustrated: b&w plates (photographs). [Oversized book(s). Additional postage necessary for expedited/international orders. Economy International shipping unavailable due to size/weight restrictions. For international/expedited customers, please inquire for rates]. NOTE: Shelved in Locked Annex Area, Netdesk Column QD (ND-QD). 1382351. FP New Rockville Stock.
Librería: booksforcomfort, Comfort, TX, Estados Unidos de America
Original o primera edición
EUR 24,87
Cantidad disponible: 1 disponibles
Añadir al carritoHardback. Condición: Very Good. 1st edition. The US Air Service in World War I, Volume III by The Albert F Simpson Historical Research Center. Published by United States Air Force History Office, Washington, DC, 1979. 1st Edition. No DJ. Size 8vo (up to 9-1/2'' tall). Condition: Nr Fine. Orig owners name in ink inside front cover. Slight edge wear to boards, overall content excellent. 794 Pgs. LCCN 75-42296. The Battle of St Mihiel. Compiled and edited by Mauer Mauer. Illustrated with drawings and black and white photographs. The Battle of St Mihiel is of singular significance in the history of the US participation in World War I. It was the first battle in France in which an American army fought under the American flag. The US offensive gained all objectives quickly and with relatively few casualties. It eliminated a menacing salient that had threatened the Allied battleline for four years, and it cleared the way for new offensives that would end the war in less than two months. 'rial operations at St Mihiel made the battle an important event in the history of US Military aviation. It was, primarily, Col William Mitchell's show. He put together the largest air force ever committed to battle and drew up the plan for its employment. This volume presents documents relating to the role of US aviation in the Battle of St Mihiel, it is 3rd in a series of 4 books published by the Office of Air Force History on US Air Service in World War I. Description text copyright 2007 BooksForComfort. Item ID 13786. book.
Publicado por Duell, Sloan and Pearce, New York, 1961
Librería: Ground Zero Books, Ltd., Silver Spring, MD, Estados Unidos de America
Original o primera edición
EUR 66,64
Cantidad disponible: 1 disponibles
Añadir al carritoHardcover. Condición: Good. Estado de la sobrecubierta: Good. 25 cm, xxi, [1],774, [2] pages. Footnotes. Illustrations. Maps. Bibliography. Glossary. Index. DJ has wear, tears, chips and soiling. Front end paper has large tear. The primary author received his Ph.D. from Vanderbilt University. During World War II he served as historical officer of the Army Air Forces Tactical Center, Orlando, Florida and assistant historical officer of Headquarters, Far East Air Forces in the Philippines. After the war he joined the United States Air Force Historical Office and later relocated to the Air University at Maxwell Air Force Base in Alabama. He became a professor and then professor emeritus there. He retired from the Civil Service in 1974 and also retired as a Lieutenant Colonel in the Air Force Reserve. Brigadier General Lawson S. Moseley for a time served as the Director, Research Studies Institute (now Aerospace Studies Institute) at Maxwell Air Force Base, Alabama. Albert F. Simpson was so significant a historian in the United States Air Force, that it's Historical Research Center is named for him. A comprehensive history of the U.S. Far East Air Force in the Korean War from 1950 to 1953. When the Korean War broke out in 1950, the AF effectively injected itself into the war in its first week, providing transportation, evacuation, intelligence, but most importantly the means to delay the rapid advance of the North Korean forces. Futrell describes all these operations with a clarity and a balance that have since become a model for official military history. He has analyzed the operations, interpreting their significance to the course of the conflict & their importance in the application of air power in modern warfare. Derived from a Kirkus review: Air superiority was the key to survival and success for the U.N. forces in Korean conflict. Futrell's, et a, history of the U.S. Air Force in Korea definitely analyses the achieving and maintaining of that superiority. The military, logistical, political problems, the successes and failures of the endeavor are carefully and clearly brought forth. Futrell skillfully manipulates a mountain of facts and makes highly readable. A concise delineation of the international political forces which dominated the war is threaded through the narration. Also welded into the account are many of the author's penetrating observations on military and other matters. Of these, the first part of Chapter 15, "Thoughts on Airpower as political Weapon", is especially enlightening. This is more than a good history of particular military branch in a particular war. It is a detailed study of the complexities of modern warfare and a sobering restatement of the continuing Soviet-American global struggle. First Edition [stated], presumed first printing.
Publicado por Aerospace Studies Institute, 1970
Librería: John Hopkinson - Bookseller, Cremona, AB, Canada
Original o primera edición
EUR 47,09
Cantidad disponible: 1 disponibles
Añadir al carritoSoft cover. Condición: Good. Estado de la sobrecubierta: Good. 1st Edition. 1970 bound soft cover.
Publicado por Univ. of Chicago Press, [1958]., Chicago:, 1958
Librería: Zephyr Used & Rare Books, Vancouver, WA, Estados Unidos de America
Original o primera edición
EUR 88,86
Cantidad disponible: 1 disponibles
Añadir al carritoTall thick 8vo. lii, [2], 666, [2] pp. With maps, numerous photo plates. Dark blue publisher's cloth, gilt badge lozenge on front cover, gilt lettering on spine, map-illustrated endpapers (minor soiling, edgewear, rubbing), w/ d.j. wraparound map cover art (minor chipping, edgewear, some soiling, slight foxing front cover), still VG-/VG- copy. First edition of this informative final 7th Volume in the series, devoted to the development of the Air Transport Command, Army Airways Communications Systems, and the Aviation Engineers. Of particular interest is the excellent chapter focused on "Women in the AAF" by Kathleen Boom.
Publicado por Washington : Office of Air Force History Headquarters, 1978
Librería: MW Books, New York, NY, Estados Unidos de America
Original o primera edición
EUR 123,86
Cantidad disponible: 1 disponibles
Añadir al carrito1st edition. Near fine copies in the original gilt-blocked cloth. Slightest suggestion only of dust-dulling to the spine bands and panel edges. Spines of volumes 3 and 4 slightly sun-toned. The set remains particularly well-preserved overall; tight, bright, clean and strong. Physical description: 4 volumes: maps, charts, illustrations, 23 cm. Notes: Includes bibliographical references and indexes. Contents: v. 1. The final report, and A tactical history -- v. 2. Early concepts of military aviation -- v. 3. The Battle of St. Mihiel -- v. 4. Postwar review. Subjects: United States Army, Air Service History; World War (1914-1918); Aeronautics, Military United States History; Military operations, Aerial American; United States. 3 Kg.
Publicado por Washington : Office of Air Force History Headquarters, 1978
Librería: MW Books Ltd., Galway, Irlanda
Original o primera edición
EUR 125,00
Cantidad disponible: 1 disponibles
Añadir al carrito1st edition. Near fine copies in the original gilt-blocked cloth. Slightest suggestion only of dust-dulling to the spine bands and panel edges. Spines of volumes 3 and 4 slightly sun-toned. The set remains particularly well-preserved overall; tight, bright, clean and strong. Physical description: 4 volumes: maps, charts, illustrations, 23 cm. Notes: Includes bibliographical references and indexes. Contents: v. 1. The final report, and A tactical history -- v. 2. Early concepts of military aviation -- v. 3. The Battle of St. Mihiel -- v. 4. Postwar review. Subjects: United States Army, Air Service History; World War (1914-1918); Aeronautics, Military United States History; Military operations, Aerial American; United States. 1 Kg.
Publicado por Univ. of Chicago Press, [1951]., Chicago:, 1951
Librería: Zephyr Used & Rare Books, Vancouver, WA, Estados Unidos de America
Original o primera edición
EUR 155,50
Cantidad disponible: 1 disponibles
Añadir al carritoTall thick 8vo. xxix, [1], 947, [1]] pp. With many maps, numerous photo plates. Dark blue publisher's cloth, gilt badge lozenge on front cover, gilt lettering on spine, map-illustrated endpapers (minor shelfwear, dustsoiling, slight bumping to couple corners), w/ d.j. wraparound map cover art (edgewear, small closed tears, minor chipping & tear head of spine, fore-edge front cover), still VG/G copy, w/ former ownership stamp on half-title. First edition of this expansive and surprisingly scarce 3rd Volume in the series, devoted to the the carrying out of air operations and bombing campaigns in Europe and the Mediterranean in 1944 to the end of the War, including supports of the D-Day invasion, Italy landings, and attacks upon German V-weapon rocket installations. Very scarce in original dustjacket.
Año de publicación: 1970
Librería: Berkelouw Rare Books, Berrima, NSW, Australia
EUR 25,14
Cantidad disponible: 1 disponibles
Añadir al carritoMaxwell AFB, Alabama: Historical Research Division, Aerospace Studies Institute, Air University, 1970. Sm. 4to. Orig. wrappers (spine discoloured, crease at top right-hand corner). (xvi, 272pp.). With b/w photographic illusts. Text in typescript.
Idioma: Inglés
Año de publicación: 2025
Librería: S N Books World, Delhi, India
EUR 34,64
Cantidad disponible: 18 disponibles
Añadir al carritoLeatheBound. Condición: New. BOOKS ARE EXEMPT FROM IMPORT DUTIES AND TARIFFS; NO EXTRA CHARGES APPLY. Leatherbound edition. Condition: New. Leather Binding on Spine and Corners with Golden leaf printing on spine. Bound in genuine leather with Satin ribbon page markers and Spine with raised gilt bands. Pages: 526. A perfect gift for your loved ones. Reprinted from 1977 edition. NO changes have been made to the original text. This is NOT a retyped or an ocr'd reprint. Illustrations, Index, if any, are included in black and white. Each page is checked manually before printing. As this print on demand book is reprinted from a very old book, there could be some missing or flawed pages, but we always try to make the book as complete as possible. Fold-outs, if any, are not part of the book. If the original book was published in multiple volumes then this reprint is of only one volume, not the whole set. IF YOU WISH TO ORDER PARTICULAR VOLUME OR ALL THE VOLUMES YOU CAN CONTACT US. Resized as per current standards. Sewing binding for longer life, where the book block is actually sewn (smythe sewn/section sewn) with thread before binding which results in a more durable type of binding. Language: English Pages: 526.
Año de publicación: 2025
Librería: Gyan Books Pvt. Ltd., Delhi, India
EUR 44,40
Cantidad disponible: Más de 20 disponibles
Añadir al carritoLeather Bound. Condición: New. Language: English. Language: English. Presenting an Exquisite Leather-Bound Edition, expertly crafted with Original Natural Leather that gracefully adorns the spine and corners. The allure continues with Golden Leaf Printing that adds a touch of elegance, while Hand Embossing on the rounded spine lends an artistic flair. This masterpiece has been meticulously reprinted in 2025, utilizing the invaluable guidance of the original edition published many years ago in 1978. The contents of this book are presented in classic black and white. Its durability is ensured through a meticulous sewing binding technique, enhancing its longevity. Imprinted on top-tier quality paper. A team of professionals has expertly processed each page, delicately preserving its content without alteration. Due to the vintage nature of these books, every page has been manually restored for legibility. However, in certain instances, occasional blurriness, missing segments, or faint black spots might persist. We sincerely hope for your understanding of the challenges we faced with these books. Recognizing their significance for readers seeking insight into our historical treasure, we've diligently restored and reissued them. Our intention is to offer this valuable resource once again. We eagerly await your feedback, hoping that you'll find it appealing and will generously share your thoughts and recommendations. Lang: - English, Pages:- 464, Print on Demand. If it is a multi-volume set, then it is only a single volume. We are specialised in Customisation of books, if you wish to opt different color leather binding, you may contact us. This service is chargeable. Product Disclaimer: Kindly be informed that, owing to the inherent nature of leather as a natural material, minor discolorations or textural variations may be perceptible. Explore the FOLIO EDITION (12x19 Inches): Available Upon Request. 464 464.
Año de publicación: 2025
Librería: Gyan Books Pvt. Ltd., Delhi, India
EUR 44,48
Cantidad disponible: Más de 20 disponibles
Añadir al carritoLeather Bound. Condición: New. Language: English. Language: English. Presenting an Exquisite Leather-Bound Edition, expertly crafted with Original Natural Leather that gracefully adorns the spine and corners. The allure continues with Golden Leaf Printing that adds a touch of elegance, while Hand Embossing on the rounded spine lends an artistic flair. This masterpiece has been meticulously reprinted in 2025, utilizing the invaluable guidance of the original edition published many years ago in 1978. The contents of this book are presented in classic black and white. Its durability is ensured through a meticulous sewing binding technique, enhancing its longevity. Imprinted on top-tier quality paper. A team of professionals has expertly processed each page, delicately preserving its content without alteration. Due to the vintage nature of these books, every page has been manually restored for legibility. However, in certain instances, occasional blurriness, missing segments, or faint black spots might persist. We sincerely hope for your understanding of the challenges we faced with these books. Recognizing their significance for readers seeking insight into our historical treasure, we've diligently restored and reissued them. Our intention is to offer this valuable resource once again. We eagerly await your feedback, hoping that you'll find it appealing and will generously share your thoughts and recommendations. Lang: - English, Pages:- 478, Print on Demand. If it is a multi-volume set, then it is only a single volume. We are specialised in Customisation of books, if you wish to opt different color leather binding, you may contact us. This service is chargeable. Product Disclaimer: Kindly be informed that, owing to the inherent nature of leather as a natural material, minor discolorations or textural variations may be perceptible. Explore the FOLIO EDITION (12x19 Inches): Available Upon Request. 478 478.
Año de publicación: 2025
Librería: Gyan Books Pvt. Ltd., Delhi, India
EUR 45,36
Cantidad disponible: Más de 20 disponibles
Añadir al carritoLeather Bound. Condición: New. Language: English. Language: English. Presenting an Exquisite Leather-Bound Edition, expertly crafted with Original Natural Leather that gracefully adorns the spine and corners. The allure continues with Golden Leaf Printing that adds a touch of elegance, while Hand Embossing on the rounded spine lends an artistic flair. This masterpiece has been meticulously reprinted in 2025, utilizing the invaluable guidance of the original edition published many years ago in 1978. The contents of this book are presented in classic black and white. Its durability is ensured through a meticulous sewing binding technique, enhancing its longevity. Imprinted on top-tier quality paper. A team of professionals has expertly processed each page, delicately preserving its content without alteration. Due to the vintage nature of these books, every page has been manually restored for legibility. However, in certain instances, occasional blurriness, missing segments, or faint black spots might persist. We sincerely hope for your understanding of the challenges we faced with these books. Recognizing their significance for readers seeking insight into our historical treasure, we've diligently restored and reissued them. Our intention is to offer this valuable resource once again. We eagerly await your feedback, hoping that you'll find it appealing and will generously share your thoughts and recommendations. Lang: - English, Pages:- 635, Print on Demand. If it is a multi-volume set, then it is only a single volume. We are specialised in Customisation of books, if you wish to opt different color leather binding, you may contact us. This service is chargeable. Product Disclaimer: Kindly be informed that, owing to the inherent nature of leather as a natural material, minor discolorations or textural variations may be perceptible. Explore the FOLIO EDITION (12x19 Inches): Available Upon Request. 635 635.
Año de publicación: 2025
Librería: Gyan Books Pvt. Ltd., Delhi, India
EUR 61,28
Cantidad disponible: Más de 20 disponibles
Añadir al carritoLeather Bound. Condición: New. Language: English. Language: English. Presenting an Exquisite Leather-Bound Edition, expertly crafted with Original Natural Leather that gracefully adorns the spine and corners. The allure continues with Golden Leaf Printing that adds a touch of elegance, while Hand Embossing on the rounded spine lends an artistic flair. This masterpiece has been meticulously reprinted in 2025, utilizing the invaluable guidance of the original edition published many years ago in 1978. The contents of this book are presented in classic black and white. Its durability is ensured through a meticulous sewing binding technique, enhancing its longevity. Imprinted on top-tier quality paper. A team of professionals has expertly processed each page, delicately preserving its content without alteration. Due to the vintage nature of these books, every page has been manually restored for legibility. However, in certain instances, occasional blurriness, missing segments, or faint black spots might persist. We sincerely hope for your understanding of the challenges we faced with these books. Recognizing their significance for readers seeking insight into our historical treasure, we've diligently restored and reissued them. Our intention is to offer this valuable resource once again. We eagerly await your feedback, hoping that you'll find it appealing and will generously share your thoughts and recommendations. Lang: - English, Pages:- 810, Print on Demand. If it is a multi-volume set, then it is only a single volume. We are specialised in Customisation of books, if you wish to opt different color leather binding, you may contact us. This service is chargeable. Product Disclaimer: Kindly be informed that, owing to the inherent nature of leather as a natural material, minor discolorations or textural variations may be perceptible. Explore the FOLIO EDITION (12x19 Inches): Available Upon Request. 810 810.
Año de publicación: 2025
Librería: Gyan Books Pvt. Ltd., Delhi, India
EUR 61,28
Cantidad disponible: Más de 20 disponibles
Añadir al carritoLeather Bound. Condición: New. Language: English. Language: English. Presenting an Exquisite Leather-Bound Edition, expertly crafted with Original Natural Leather that gracefully adorns the spine and corners. The allure continues with Golden Leaf Printing that adds a touch of elegance, while Hand Embossing on the rounded spine lends an artistic flair. This masterpiece has been meticulously reprinted in 2025, utilizing the invaluable guidance of the original edition published many years ago in 1978. The contents of this book are presented in classic black and white. Its durability is ensured through a meticulous sewing binding technique, enhancing its longevity. Imprinted on top-tier quality paper. A team of professionals has expertly processed each page, delicately preserving its content without alteration. Due to the vintage nature of these books, every page has been manually restored for legibility. However, in certain instances, occasional blurriness, missing segments, or faint black spots might persist. We sincerely hope for your understanding of the challenges we faced with these books. Recognizing their significance for readers seeking insight into our historical treasure, we've diligently restored and reissued them. Our intention is to offer this valuable resource once again. We eagerly await your feedback, hoping that you'll find it appealing and will generously share your thoughts and recommendations. Lang: - English, Pages:- 810, Print on Demand. If it is a multi-volume set, then it is only a single volume. We are specialised in Customisation of books, if you wish to opt different color leather binding, you may contact us. This service is chargeable. Product Disclaimer: Kindly be informed that, owing to the inherent nature of leather as a natural material, minor discolorations or textural variations may be perceptible. Explore the FOLIO EDITION (12x19 Inches): Available Upon Request. 810 810.
Año de publicación: 2025
Librería: Gyan Books Pvt. Ltd., Delhi, India
EUR 77,32
Cantidad disponible: Más de 20 disponibles
Añadir al carritoLeather Bound. Condición: New. Language: English. Language: English. Presenting an Exquisite Leather-Bound Edition, expertly crafted with Original Natural Leather that gracefully adorns the spine and corners. The allure continues with Golden Leaf Printing that adds a touch of elegance, while Hand Embossing on the rounded spine lends an artistic flair. This masterpiece has been meticulously reprinted in 2025, utilizing the invaluable guidance of the original edition published many years ago in 1977. The contents of this book are presented in classic black and white. Its durability is ensured through a meticulous sewing binding technique, enhancing its longevity. Imprinted on top-tier quality paper. A team of professionals has expertly processed each page, delicately preserving its content without alteration. Due to the vintage nature of these books, every page has been manually restored for legibility. However, in certain instances, occasional blurriness, missing segments, or faint black spots might persist. We sincerely hope for your understanding of the challenges we faced with these books. Recognizing their significance for readers seeking insight into our historical treasure, we've diligently restored and reissued them. Our intention is to offer this valuable resource once again. We eagerly await your feedback, hoping that you'll find it appealing and will generously share your thoughts and recommendations. Lang: - English, Pages:- 526, Print on Demand. If it is a multi-volume set, then it is only a single volume. We are specialised in Customisation of books, if you wish to opt different color leather binding, you may contact us. This service is chargeable. Product Disclaimer: Kindly be informed that, owing to the inherent nature of leather as a natural material, minor discolorations or textural variations may be perceptible. Explore the FOLIO EDITION (12x19 Inches): Available Upon Request. 526 526.