This collection is divided into two series: (a) Silver gelatin prints; and (b) xerographic copy prints made in the museum. The collection consists of approximately 340 photoprints (count to be verified) documenting the life of Thomas Alva Edison, especially the later period, beginning in his early fifties, continuing until his death in 1931 at age ...
Legal documents, photographs, articles, copies of correspondence, three folders of original Gray correspondence on the Gray-Bell controversy; most of the collection consists of copies of material, or printed matter, collected by Lloyd W. Taylor of the museum staff.
This collection documents the history of the development of international communications. Includes official correspondence, 1926-1945, while Gross was at the F.C.C.; clippings; photographs; publications; legal documents; radio licenses; reports from international conferences; and F.C.C. reports and circulars.
Press clippings, 1895-1897, from British publications (some unidentified) and one French journal describing the invention and the organization of the Automatic Telephone Company, Ltd. A note on the life of Max Margowski, one of the company's organizers is included, with statements of the company accounts (one a 1901 balance sheet). A record of liti...
35 binders of engineering drawings, correspondence, and charts concerning high frequency alternators, low and high frequency antenna systems, insulators, conductors, power transformers, cables, and vacum tubes.
The collection documents the technology of lighting and various business aspects of the General Electric Lighting Division throughout the 20th century and consists of correspondence, bulletins, price lists, business record books, stock certificates, sales and advertising materials, scrapbooks, photographs, and lantern slides.
This collection largely contains correspondence regarding the Kleinschmidt Teletype, as well as financial records and newspaper clippings regarding the Teletype Company.
The collection documents the early development of radio apparatus.
The papers document the professional career of mechanical engineer, Charles Richardson Pratt. The papers include correspondence, patents, patent application materials, agreements, photographs, publications, and blueprints for many of Pratt's inventions, especially his work on elevators.
Original documents and papers generated by William J. Hammer and by various companies and individuals with whom he was associated. Includes material related to the research and inventions of Edison, Bell, Tesla, the Curies, etc.