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: $100

Buyer's premium:

1913, Langnau, 50c dark brown violet, usual rough perforation, nice centering, full OG, very light trace of hinge (appearing NH), VF, SBK #VI, CHF650, Est. $150-$200