Edison Botanic Research Corporation check, 8.5 x 3, filled out in another hand and signed with his 'umbrella' signature by Edison, "Thos. A. Edison," payable to John W. Small for $4, stamp-dated August 14, 1928. Another hand has added "Book" in the memo field. In fine condition. The reverse of the check is endorsed by both Small and by John K. Small, with the latter being a prominent botanist who wrote extensively on the plants of Florida. Given that Edison had a laboratory in Fort Myers and experimented extensively with plants, mainly in pursuit of a substitute for rubber, it seems likely that the purchase was directly related to his own research.
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