Autograph Note Signed

Thomas A. Edison Autograph Note Signed

Thomas A. Edison Autograph Note Signed

Thomas A. Edison Autograph Note Signed  Thomas A. Edison Autograph Note Signed

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EDISON - AUTOGRAPH NOTE SIGNED - HFSID 147231. ANS: " E " in pencil, 1p, 5x8 lined sheet.

In full: " Did you polish the set you I & Folsom went over & had Neill rerate -- ". Edison, who writes to laboratory supervisor, S. Moore, is likely discussing refinements in the design of his disc phonograph.

Originally, in 1877, Edison's phonograph had a receiver, a delicate metal needle that operated on a phonograph blank of white wax. The surface of the wax blank (which looked like an ivory box) could record from 1,000 to 1,200 words or several musical compositions. The wax blank then could be automatically pared from 15-20 times for new records.

Between 1912 and 1926, Edison continually refined his discs starting with the Edison Disc Records in 1912 and launching his marketing sensation, The Re-Creation Disk, in 1919. The up and down groove enabled the record to play 50% longer than the "talking machine" record of the same size. A 10-inch Edison Disc record played longer than a 12-inch lateral groove. His Re-Creation Disk was molded in greater thickness and from a harder substance than an ordinary record, making it more durable. The phonograph was Edison's favorite invention.

Lightly creased with folds, horizontal fold at the lower portion of the "E". ¼-inch separation at blank right margin at upper horizontal fold, ¼-inch tear at upper blank edge. Chipped at upper and lower left and upper right blank corners and at mid-left edge. See more material from these signers. See more listings in our SCIENCE & MEDICINE (1,260).

Please note that this is an authentically signed item. We do not sell autograph copies or signature reprints. Images shown may contain our company watermark. The actual document does not contain this watermark. This item has been authenticated and is accompanied by a Certificate of Authenticity issued by our parent company, Gallery of History, Inc.

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And This Week's Specials. Gallery of History is the world's largest dealer of authentic autographs and manuscripts. Our inventory contains documents in all areas of interest including presidents, royalty, military, aviation, religion, business, science, celebrities, sports, music, authors and more. Whether looking to add to your collection, acquire a unique centerpiece for the home or office, or as a truly one-of-a-kind gift for someone special, you'll find it here at HistoryForSale.

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EDISON AUTOGRAPH NOTE SIGNED" is in sale since Wednesday, November 18, 2020. This item is in the category "Collectibles\Autographs\Science, Inventor". The seller is "historydirect" and is located in Las Vegas, Nevada.

This item can be shipped worldwide.
  1. Authentication: Numbered COA issued by Gallery of History, Inc.
  2. Signed by: Thomas A. Edison
  3. Autograph Type: Autograph Note Signed
  4. Autograph: Authentic Original

Thomas A. Edison Autograph Note Signed  Thomas A. Edison Autograph Note Signed