Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World, Part 2
Lot 1124:
1918, black overprint (type 19) on imperforate 1r dark brown, pale brown and orange, full OG with minimal wave without creasing, VLH, VF and scarce, expertized by Dr. Seichter, the stamp priced with ”-” in the Catalog, Est. $150-$180, Bulat #1699
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