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

Worldwide Air Post Stamps and Postal History - Liberia

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Start price: $750

Buyer's premium:

1941, First Flight Liberia – US, black surcharge 50c on 1c green, nicely centered, full OG, light trace of hinge, VF and very rare, only 43 stamps were produced, several guarantee hs on reverse, including J. Stolow, C.v.$3,250, Est. $1,200-$1,500 , Sc. #C17