Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World. Part 1
Lot 83:
1887, pre-printed cover of ”Airship the Construction Department. Russia” (The Head of the Department was Prof. Dmitry I. Mendeleyev, creator of the Periodic Law of Elements), the item franked by 7k blue and sent from St. Petersburg to Berlin, addressed to Hermann Moedebeck, Aeronautics Pioneer, specialist in air navigation, the cover has all appropriate markings, VF, a rarity the dawn of aviation, Est. $3,000-$4,000, Scott #35
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