Auction 90, Session 1 - Worldwide Rare Stamps and Postal History
Lot 131:
1940, American Educators, Frances E. Willard, large die proof of 5c in ultramarine, printed on India paper and mounted on sunken die card, proof size 75x90mm, card size 152x203mm, numbered ”622591A” on reverse and officially signed, slightly rounded corners, still fresh, VF and rare, PF certificate, C.v. $1,500, Est. $600- $750, Sc. #872P1
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