Worldwide Air Post stamps and postal history, Zeppelin Flight items, philatelic rarities of the World. Part 2

Belgian Colonies - Congo - Semi - Postal issues

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Start price: $100

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1939, Leopoldville Zoo, 1+1fr-5+5fr, complete set of five in blocks of four, nicely centered and post office fresh, full OG, NH, VF, C.v. $340++, Est. $150-$200 , Sc. #B27-31