Hindenburg First Flight Envelope

Q: I bought this envelope commemorating the Hindenburg’s “First Flight” at a flea market in the 1960s. The words “By First Flight on the ‘Hindenburg’” were typewritten at the top where the return address belongs. The envelope was postmarked May 11, 1936, in New York, N.Y., and is addressed to someone in White Plains, N.Y. […]