Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World, Part 1
Lot 114:
1926, Umberto Nobile Trans-Polar Expedition, group of five perforated (pair) and imperforate labels, as well as imperforate proof without colors on the Globe (light blue and light beige), all except proof with official seal on reverse, full OG (one has slight foxing), NH, VF, Est. $200-$250
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