Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World, Part 2
Lot 905:
COLLECTION OF ESPERANTO MAILINGS: 1908-14, ten postcards or covers, arranged on well-described pages, a half is addressed to foreign destinations, including USA (2), Uruguay, Switzerland and Turkey, all bearing labels or Esperanto handstamps, nice and fresh condition, all appropriate markings, mostly VF, Est.$300-$400
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