Langley, Samuel Pierpont. (1834-1906) American Astronomer and Airplane Pioneer, the first to build a heavier-than-air flying machine, a steam-powered model aircraft. Inscribed Visiting Card Signed. Approximately 3 x 1½", on cream card stock. Penned in red ink "Aug 25 / Daniel Canal, Please pardon me for leaving my note books so long with you. I have now taken them. SP Langley" on verso. Mounting traces on recto.
Estimated Value $375-500.
