Photograph of three Douglas O-2H aircraft of the Ohio National Guard parked at the National Air Races in Dayton, Ohio, circa 1930. Inscription: "U.S. Army. Dayton. Douglass [Douglas] O-2H. LM."Inscription on verso: "3 Observation ships of O.N.G.…
Photograph of a Douglas O-2H aircraft of the Ohio National Guard on display at the National Air Races in Dayton, Ohio, circa 1930. An unidentified man looks over the plane.Inscription: "U.S. Army. Dayton. Douglas O-2H"Inscription on verso: "Douglas 2…
Photograph of a United States Army Air Corps Curtiss P-5 Hawk aircraft on display at the National Air Races in Dayton, Ohio, circa 1930.Inscription: "U.S. Army. Dayton. Curtiss 'Baby Hawk' P-5."Inscription on verso: "Curtiss 'Baby Hawk.' Dayton…
Photograph of the wingless fuselage of a training airplane built by Halden H. Emrick, Dayton, Ohio, 1916.
Inscription on verso: "Dayton Ohio - 1916. Fuselage of single seater - Anzani motor built by HH Emrick."
Photograph of the wingless fuselage built by Halden H. Emrick, Dayton, Ohio, 1916.
Inscription on verso: "Dayton Ohio – 1916 -- Anzani motor -- Single seater fuselage built by HH Emrick."
Photograph of a training aircraft built by Halden H. Emrick, Dayton, Ohio, 1916.
Inscription on verso: "Dayton Ohio - 1916. Anzani motor single seater built by HH Emrick."
Photograph of a training aircraft built by Halden H. Emrick, Dayton, Ohio, 1916. The aircraft's propeller blades are missing.
Inscription on verso: "Dayton Ohio - 1916 - [Auzani?] motor - single seater built by HH Emrick."
Photograph of a training aircraft built by Halden H. Emrick, Dayton, Ohio, 1916.
Inscription on verso: "Dayton Ohio - 1916 - Anzani motor single seater built by HH Emrick."
Photograph of a radial motor and propeller mounted on a test block, Dayton, Ohio, 1915.
Inscription on verso: "Dayton Ohio - 1915. Radial motor on test block."
Photograph of Halden H. Emrick seated in the cockpit of a training aircraft, Dayton, Ohio, 1916.
Inscription on verso: "Dayton Ohio - 1916 - HH Emrick. 8."