Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World, Part 2

Russian Semi-Postal Issues

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Start price: $250

Buyer's premium:

1915, World War I Charity issue, 3+1k red and gray black, printed on white paper, perforation 13½, ”miniature” sheet of 50 (5×10), a common sheet consists of 100 stamps, control No.1 on bottom margin, folded along horizontal perforation, insignificant marginal separation possible, full OG, NH, VF, Est. $500-$600, Scott #B10 var