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

Worldwide Air Post Stamps and Postal History - Switzerland

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Start price: $250

Buyer's premium:

1913 (April 27), Liestal, (30c) yellow and brown, used on special Liestal air post PPC together with 10c red, several repaired tears of the card (stamp is not affected), in addition an unused stamp with OG (shallow thin), F/VF appearance, SBK #VIII, CHF2,300 (stamp on the card is counted as used single), Est. $400-$500