Apr 16, 2019 - Sale 2505

Sale 2505 - Lot 189

Unsold
Estimate: $ 1,500 - $ 2,500
(SCIENCE AND ENGINEERING.) Berliner, Emile. Memorandum. Mr E. Berliner has the honor to submit to the attention of his co-laborers. [4] pages, including a page of illustrations, 9 3/4 x 6 inches, on one folding sheet; small number tag on front page, minor wear. Washington, 1877

Additional Details

Emile Berliner (1851-1929) was a German-American inventor and contemporary of Edison who invented the phonograph record. This leaflet describes 3 of his inventions: a contact telephone, an electric spark telephone, and telephonic transfer, with diagrams of each. We trace no other examples on OCLC or at auction.