Signed by James Watson and with a drawing of the Double Helix

WATSON, JAMES

Signed sketch of the Double Helix. Washington: 17 December 1981. First day issue cover with an ink drawing of the Double Helix with "A-T/G-C/DNA" and signed "James D. Watson", the cover numbered 834 of 1500. 3 1/2 x 6 3/8 inches (16.5 x 9 cm). Fine.

Watson, 95, no longer signs autographs and has not made drawings of this kind for over a decade.
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