Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World, Part 3

Russian Semi-Postal Issues

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Start price: $2,000

Buyer's premium:

1988, Zoo Relief Fund, 10+5k x2, 20+10k x3 multicolored, bottom right corner sheet margin imperforate block of five with label, signal lights at the bottom edge, full OG, NH, VF and very rare, Est. $3,000-$4,000, Scott #B145a