Worldwide Air Post stamps and postal history, Zeppelin Flight items, philatelic rarities of the World. Part 3
Lot 1235:
1949, 75th Anniversary of the UPU, 40k and 50k, perforated and imperforated complete sets used on registered cover from Riga to England in 1950, all appropriate markings and blue crayon cross upon arrival, mostly VF, Est. $100-$150 , Sc. #1392-93, a
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