Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World, Part 2
Lot 571:
1920, Paris issue, Ararat Mountain, imperforate plate proof of 100r in red and black brown (issued colors), block of 25 with invalidated perforation, no gum as issued, VF and scarce multiple, Artar #609P, Est. $500- $600
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