The 1.30 Graf Zeppelin Crypto Stamp - 1930 is available with a locked content of a stamped gif 800x364 with transparent background to use to decorate your emails or to mint as a new your own NFT to trade.
The 1.30 Graf Zeppelin Crypto Stamp - 1930 reproduce one of the three stamps that went on sale on April 19, 1930. Three special airmail stamps, the Graf Zeppelins, were made available for sale to be used exclusively on mail carried via the Graf Zeppelin on its European – Pan American flights the following month. The $1.30 brown issue (Zeppelin between continents) paid the postage of a letter going one way.