Worldwide Air Post Stamps and Postal History, One Man Collection of Tannu Tuva, Philatelic Rarities of the World, Part 2
Lot 768:
Description
1922, Industry and Agriculture Allegory, eight trial color imperforate proofs of 3000r, including three on white wove paper in brown, light blue and violet; and five printed on thin yellowish cards in carmine, orange, brown, slate blue and violet, no gum as produced, NH, VF, card proofs are rare, Est. $400-$500, Scott #29
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