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

Worldwide Air Post Stamps and Postal History - Germany

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Start price: $100

Buyer's premium:

1912 (June 13), Rhine-Main Air Mail, specially printed orange postcard, franked by dark blue surcharge ”Helber Hund” 1m on 10pf orange, uprated by Germania 5pf green, tied by Darmstadt ”13.6.12” date stamp, message is on reverse, VF, Sieger #13, €300, Est. $150-$200, Sc. #CL4