Szekely Flying Dutchman by Szekely Aircraft And Engine Co. Holland-Michigan, 1928-1929.

via SDASM

The X-2 (46-675) with a collapsed nose landing gear, after landing on the first glide flight at Edwards Air Force Base,  June 27,  1952.  The aircraft pitched at landing, slid along its main skid and contacted the ground with the right wingtip bumper skid causing it to break off. The nose wheel had collapsed upon contacting the ground. Test pilot: Jean L. “Skip” Ziegler. Photo: NASA/DFRC.

North American XB-70 Valkyrie at the National Museum of the United States Air Force, Dayton, Ohio. (U.S. Air Force photo.)

Snecma Flying Coleoptere (C-450).

via JP Dubs

Air Progress. March, 1965.

via JP Dubs

Air Progress. October, 1965.

via JP Dubs

Magic Doudler. Made in Czechoslovakia. C1970.

Lockheed F-104A-15-LO (S/N 56-0769 and 56-0781) in flight with Lockheed EC-121 (S/N 55-0127).  Photo: U.S. Air Force.

F-100A (S/N 53-1663), F-101 (S/N 53-2430), F-102 and F-104 (S/N 53-7786) on the ramp. (U.S. Air Force photo).