Robert Sinsheimer Signed FDC First Day Cover Autographed Scientist Biologist

Description

Up for sale is a signed First Day Cover, boldly autographed by scientist Robert Sinsheimer.
Autograph was part of the well known single owner, original "Roger Harris" collection of thousands of
autographs, acquired over many decades of collecting.
I welcome questions and offers on the autograph, and can typically respond to your questions or offers within an hour or two.  Shipping and handling will be
via USPS, I ship out within one day of payment from the winning bidder.  Bu
y with confidence, I have 100% perfect feedback and have been an eBay seller of autographs and memorabilia for over eighteen years.