Sold For $2,638
*Includes Buyers Premium
Original sketch by James D. Watson of a double helix, adding the base pair “A=T, G=C,” accomplished in black ballpoint on an off-white 8.5 x 10.5 sheet, signed to the left, “Jim Watson.” In fine condition, with two unobtrusive mailing folds.
This item is Pre-Certified by PSA/DNA
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