Edison Botanic Research Corporation check, 8.25 x 3, filled out in another hand and signed by Edison with his ‘umbrella’ signature, “Thos A. Edison,” payable to Peter Henderson & Co. for $4.00, February 18, 1929. In very good condition, with a central vertical fold, a few pencil notations to the top edge, light show-through from stamps on the reverse, and the expected cancellation holes affecting the first half of the signature. Pre-certified PSA/DNA and RR Auction COA.
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