Telegraphone recording wire (1 resultados)
Editorial: Smithsonian Institution, Washington 1901
Librería: Cosmo Books, Shropshire., Reino UnidoCosmo Books
Contactar con el vendedorVendedor de 5 estrellasCondición: Usado - Bueno
EUR 12,94
Envío por EUR 13,71Se envía de Reino Unido a Estados Unidos de AmericaCantidad disponible: 2 disponibles
Booklet - Unbound Pages. Condición: Very Good. Hammer introduces the telephonograph (or telegraphone), an early magnetic soundâ'recording device, explaining its mechanism and potential applications. 6 Pages. An authentic standalone article, extracted from a larger volume. Not a reprint or reproduction, but an original work in it…s own right. Preserved in a modern card cover, prepared for practicality - an unassuming but serviceable presentation that favours function over finery. Size: 16 x 24 cms. Category: Smithsonian Institution; Cosmo Books : 29 years on ABE, 47 years taking care of customers. A bookseller you can rely on.
