Rare Thomas Edison Autograph Display
Graded Perfect PSA 10 Gem Mint!
Edison signed his full-name "Thomas A. Edison" with the classic "umbrella" over the top, indicating that the autograph is pre-1900's. This style was so distinctive that in 1899 he had the signature trademarked, and thereafter it appeared on every commercial product he sold, and in every advertisement. At the turn of the century he began abbreviating his first name to "Thos."