morris jeppson (11 resultados)

No Binding. Condición: Fine. 3"x5" white card handwritten SIGNED by Morris Jeppson: "Morris Jeppson, Weapons Test Officer, Enola Gay Mission, Hiroshima 6 Aug. 1945". Also includes laid-in the original New York Times obituary fo Jeppson. SIGNED.

No Binding. Condición: Very Good. Condition: Very Good. 6"x7" B&W computer generated photo (on 8"x11" bonded paper-folded twice) SIGNED by Morris Jeppson: "Morris Jeppson, Weapons Test Officer, Enola Gay Mission, 6 Aug. 1945". Photo is of Jeppson standing next to Enola gay plane. SIGNED.

LeatherBound. 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: 230. A perfect gift for your loved ones. Reprinted from 1979 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: 230.

609 x 456 mm. Morris Jeppson's hand-annotated blueprint of the "Little Boy" atomic bomb. Jeppson designates parts of the bomb and writes, in part: "During the flight I removed 3 green electrical plugs and replaced them with red coded plugs. This allowed a detonation voltage to go from fusing to the explosive that fired the projectile of U235 into the target of U235 when the bomb reached about 1500 feet above Hiroshima". - Signed "Morris Jeppson / Weapon Test Officer / Enola Gay Mission / HIROSHIMA 6 Aug. 1945". - Jeppson served as assistant weaponeer on the Enola Gay, which dropped the first atomic bomb on the city of Hiroshima, Japan on 6 August 1945.

Leather 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 1979. 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:- 230, 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. 230 230.

Jeppson, Morris, annotated "Little Boy" atomic bomb diagram, signed in reference to the Hiroshima mission of August 6, 1945, documents firsthand technical interpretation of the first nuclear weapon used in war. The sheet holds historical value for the study of the Manhattan Project, atomic weapons deployment, and the operational knowledge carried by members of the Enola Gay crew. Jeppson's role as Weapons Test Officer gives the document particular importance, since the annotations do not merely identify the bomb after the fact but explain its mechanism from the perspective of a participant directly involved in its wartime use. Jeppson, Morris. Annotated diagram of "Little Boy." 1 page. Black and white printed diagram with extensive handwritten notations and signature. The diagram shows the internal arrangement of the bomb's major components, with Jeppson adding arrows and manuscript labels identifying the "target U235," the "projectile 235," the "electric detonator," the "gun barrel," and "one of 4 radar antennas." He further explains the bomb's operation in functional terms, noting where the uranium projectile would strike and that it "Becomes critical mass with projectile." Signed at the bottom, "Morris Jeppson / Weapon Test Officer / Enola Gay Mission / HIROSHIMA 6 Aug. 1945." The notations transform the printed diagram into a participant-marked technical document linking design, terminology, and mission-specific memory. The document is tied directly to the bombing of Hiroshima, the event that introduced nuclear warfare and altered the political and military history of the twentieth century. Its interpretive value lies in the combination of technical content and eyewitness association: the sheet preserves not only a schematic of the bomb itself but also the language used by a mission participant to explain how the weapon functioned. That combination makes it useful for examining how atomic technology was understood by military personnel at the point where scientific development and combat deployment converged. Minor handling wear; otherwise well-preserved with clear manuscript annotations and signature. Overall very good condition. Signed.

Jeppson, Morris. Inscribed photograph of Hiroshima following the atomic bombing, provides a first-person technical account of the in-flight arming procedure for the weapon deployed on August 6, 1945. As weapons officer aboard the Enola Gay, Morris Jeppson was responsible for ensuring the bomb's operational readiness, and his inscription records the precise moment he armed the device prior to release. The document contributes direct evidence to the operational history of nuclear warfare by describing the mechanical steps required to enable detonation, linking the destruction of Hiroshima to the technical actions performed within the aircraft during the mission. Jeppson, Morris. Hiroshima devastation photograph. United States, post-1945. Black-and-white photograph measuring approximately 11 x 8.5 inches, inscribed in ink by Morris Jeppson. The inscription reads: "Before the Enola Gay B29 moved to bombing altitude I climbed into the bomb bay and replaced an electrical component (plug) in the bomb with a red coded plug that armed the bomb, so that it would detonate when it reached an elevation above ground of about 1800 feet - while traveling at the speed of sound - about 1000 feet per second. Morris Jeppson - Weapon Test Officer - Enola Gay Mission - Hiroshima 6 Aug. 1945." The text provides a detailed explanation of the arming mechanism, including altitude-based detonation and the physical act of replacing the safety component with an active trigger system. This inscription situates the photograph within the technical and procedural framework of the atomic bombing, documenting how nuclear weapons required manual intervention and verification during flight. Jeppson's account reflects the integration of engineering design and human execution central to the deployment of atomic weapons at the close of World War II. The combination of a destruction image with a participant's technical explanation offers a layered primary source for the study of nuclear technology, military operations, and the human roles embedded within systems of unprecedented destructive capacity. Light handling wear; photograph remains clean with strong, legible inscription. Overall very good. Signed.

Jeppson, Morris. Inscribed photograph of the Hiroshima Atomic Dome following the atomic bombing, provides a quantified assessment of destruction written by the weapons officer responsible for arming the bomb aboard the Enola Gay on August 6, 1945. As the individual who physically armed the device prior to release, Morris Jeppson links technical execution of the mission with retrospective evaluation of its effects. His inscription records measured estimates of blast radius, fire spread, and infrastructure damage, contributing to the historical record of how participants in the bombing articulated its scale and consequences in numerical terms. Jeppson, Morris. Hiroshima Atomic Dome photograph. United States, post-1945. Black-and-white photograph measuring approximately 9 x 8.5 inches, inscribed in ink by Morris Jeppson. The inscription reads: "The radius of destruction of Hiroshima was about 1.6 km, with resulting fires across 11.4 square km. Infrastructure damage was estimated at 90% of Hiroshima's buildings either damaged or completely destroyed. Morris Jeppson - Weapon Test Officer - Enola Gay Mission - Hiroshima 6 Aug. 1945." The image depicts the Atomic Dome, one of the few surviving structures near the hypocenter, paired with Jeppson's statistical summary of destruction, integrating visual evidence with numerical interpretation. The Hiroshima bombing introduced a new scale of urban destruction defined by nuclear technology, with immediate and long-term consequences for civilian populations and infrastructure. Jeppson's inscription reflects how participants in the mission communicated its impact through measurable data, aligning with postwar efforts to document and understand the physical effects of atomic weapons. The combination of a landmark image of the Atomic Dome with a participant-authored damage assessment offers a primary source for the study of nuclear warfare, urban devastation, and the translation of technological force into quantifiable outcomes. Light handling wear; photograph remains clean with strong, legible inscription. Overall very good. Signed.

Jeppson, Morris. Hand-annotated diagram of the "Little Boy" atomic bomb, 1945, provides a direct technical interpretation of the weapon used in the bombing of Hiroshima by a participant who bridged both its development and deployment. As weapons officer aboard the Enola Gay and a scientist present at Los Alamos Laboratory, Jeppson occupied a rare dual role linking the Manhattan Project's design phase with the operational execution of nuclear warfare. His annotations explain the internal structure and function of the uranium gun-type bomb, offering a contemporaneous explanation of how critical mass was achieved and how the weapon was triggered. The document situates technical knowledge of nuclear fission within the lived experience of those responsible for its first use in warfare during World War II. Jeppson, Morris. "Little Boy" atomic bomb diagram. United States, 1945. One-page black-and-white printed diagram with extensive handwritten annotations and arrows in ink, signed at lower margin "Morris Jeppson / Weapon Test Officer / Enola Gay Mission / HIROSHIMA 6 Aug. 1945." The annotations identify and explain key components, including "target U235," "projectile 235," and the process by which the bomb "Becomes critical mass with projectile," along with labeled elements such as the "electric detonator," "gun barrel," and "one of 4 radar antennas." The markings function as a technical overlay to the printed schematic, clarifying both structure and mechanism from the perspective of the officer responsible for in-flight arming and monitoring of the device. The atomic bombing of Hiroshima marked the first combat use of nuclear weapons and introduced a new phase of warfare defined by unprecedented destructive capacity and strategic implications. Jeppson's role in both the scientific and operational dimensions of the mission positions this document within the immediate transmission of specialized knowledge from laboratory to battlefield. His annotations provide insight into how participants understood and communicated the bomb's function, contributing to the historical record of nuclear science, military technology, and the transformation of warfare at the end of World War II. Light handling wear; diagram remains clear with strong, legible annotations and signature. Overall very good. Signed.

Jeppson, Morris R. handwritten autograph letter signed, 6 August 1945, presents a sustained justification for the use of the atomic bomb by the weapons test officer aboard the B-29 Enola Gay during the Hiroshima mission. Morris R. Jeppson (1922-2010), who armed the Little Boy device in flight and served with the 509th Composite Group, responds in this two-page manuscript to questions concerning revenge, presidential decision-making, and strategic alternatives. The letter directly supports research into World War II strategic policy, the moral and political framing of atomic warfare, and postwar memory as articulated by Manhattan Project personnel and combat participants. Rather than focusing on technical procedure, Jeppson here situates the bombing within the broader trajectory of Pacific War casualties and the projected invasion of the Japanese home islands. Jeppson, Morris R. 6 August 1945. Two pages. Approximately 8.5 x 11 inches. In this holograph letter written in question-and-answer format, Jeppson rejects the notion that the bomb constituted retaliation for Pearl Harbor: "There was no need to consider the use of the atomic bomb for 'revenge' for Pearl Harbor. The response to the Japanese attack was the immediate declaration of war in December 1941." He continues that after "3 1/2 years of devastating warfare in the Pacific," a decision was required "in an attempt, and hope, to put an end to the war," noting that "an even more destructive phase of this war was to start with the invasion of Japan in November 1945." Addressing alternatives, he states that "the only other alternative was the planned invasion to defeat Japan," citing the heavy costs of Okinawa, Iwo Jima, the Philippines, and the Marianas as evidence of Japanese resistance. He concludes, "Hiroshima provided the alternative to end the war quickly," and affirms that these were "the justifications for using the atomic bombs against Japan." Signed, "Sincerely, M. Jeppson / Weapon Test Officer / Enola Gay Mission / Hiroshima 6 Aug. 1945." Composed retrospectively and dated to the day of the mission, the letter reflects the enduring debate over whether atomic use was necessary to avoid invasion and further mass casualties. Jeppson's explicit rejection of revenge as motive and his emphasis on projected losses during Operation Downfall situate his reasoning within a postwar narrative that framed atomic bombing as a strategic instrument to forestall a bloodier campaign. His invocation of declassified Japanese and U.S. War Department materials signals engagement with evolving historiography and public discourse. As one of the few individuals who physically armed the weapon in flight, Jeppson's written defense carries particular evidentiary value in understanding how direct participants articulated the political and military rationale of atomic warfare. Minor edge wear and light handling creases; ink strong and fully legible; paper clean. Overall very good to near fine condition. A substantive, self-authored justification of atomic use by the Enola Gay's weapons officer, anchoring strategic argument within firsthand participation in the mission that inaugurated the nuclear age. Signed.

Jeppson, Morris R. Autograph letter discussing the Hiroshima atomic bombing written by the weapons test officer aboard the B 29 Enola Gay, the aircraft that delivered the first atomic bomb used in warfare on 6 August 1945. Morris Jeppson served as the officer responsible for arming the uranium bomb known as "Little Boy" during the mission, inserting the firing plug that activated the weapon shortly before the aircraft reached its target. His later correspondence addressing questions about the bombing provides firsthand testimony concerning the strategic context of the mission and the reasoning expressed by participants in the decades following World War II. Jeppson, Morris R. Autograph Letter Signed. Two pages written on yellow lined paper. In the letter Jeppson responds to written questions concerning the atomic bombing and the circumstances surrounding the Hiroshima mission, recording both the questions and answers in his own hand with numerous corrections and annotations. Addressing the question of whether atomic weapons might have been used against Germany, Jeppson explains: "Germany was near defeat months before atomic weapons were ready for war. The 509th B29 Bomb Group was brought together at Wendover, Utah in the fall of 1944 and early 1945. B17 and B23 bombers that were destroying German industries and cities had ranges too short for targets in Japan and they were too small to carry the large atomic weapons that were being developed at Los Alamos." He continues by describing the strategic role of the B 29 aircraft and the planning surrounding the Pacific theater, noting that "clearly it was anticipated that the first use of atomic bombs would be on Japan in the Pacific War," while also recalling wartime concern that Germany might develop a similar weapon before its defeat. In response to a question about regret concerning the atomic bombing, Jeppson writes that many correspondents had contacted him in later years reflecting on the consequences of the war's end: "Veterans of the War, who were to be in the invasion of Japan, AN INVASION THAT DIDN'T HAPPEN. Children and grandchildren who say they might not be here today had the invasion occurred. Many in Japan today are alive because the war ended." He concludes that while there is "sorrow for those killed and injured by the two atomic bombings. the war ended quickly. A worse future didn't happen." The letter is signed "Morris R. Jeppson." Correspondence of this kind forms part of the broader historical record through which participants in the Hiroshima mission addressed public debate over the atomic bomb during the decades following World War II. Light handling wear with minor corrections visible in the manuscript text; overall excellent condition. A detailed firsthand statement by the officer who armed the atomic bomb during the Hiroshima mission. Signed.