Worldwide Air Post stamps and postal history, Zeppelin Flight items, philatelic rarities of the World. Part 1

Worldwide Air Post Stamps and Postal History - Bolivia

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Start price: $300

Buyer's premium:

1937, Surcharges on Aviation School, Lloyd Emblem, Landscapes and commemorative stamps, 5c/35c-10b/5b, the total is 35 stamps, one sheet of 25 (No.C60) and two covers, representing 14 surcharge varieties, including 0.05c/35c brown red and black instead of red surcharge 10b/5b (single and on cover), all arranged on pages from a Collection, nice quality unit, full/large part of OG, VF, Est. $500-$600, Sc. #C52-62, var