Bidspirit auction | Worldwide Air Post Stamps and

Worldwide Air Post Stamps and Postal History - Germany - Zeppelin Flights - 1930 (June 24), Silesia Flight postcard (Hugo Eckener) to Basel, franked by Eagle 1m black and salmon, on board ''24.6.1930'' cancellation, Görlitz ''24.JUN.1930'' red drop ds, Zurich Airport ''25.VI.30'' marking, VF and scarce, Sieger #69Bb, Est. $150-$200, Scott #C32