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The Pitcairn "Mailwing" PA-5 : a single-seat commercial biplane (1927)

NASA Technical Reports Server (NTRS) · leaf 9

An illustration from The Pitcairn "Mailwing" PA-5 : a single-seat commercial biplane, 1927, leaf 9

NASA Technical Reports Server (NTRS)

Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.

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