Technical drawing, "Airship economic speed indicator," circa 1910s-1920s.Part of a photograph album related to John Sylvester Wheelwright's service with the Royal Naval Air Service, circa 1907-1943.
Technical drawing, "Arrangement of undercarriage and auxiliary blower for N.S.3 [airship]," circa 1917-1918.Part of a photograph album related to John Sylvester Wheelwright's service with the Royal Naval Air Service, circa 1907-1943.
Technical drawing of airship components, circa 1910s-1920s.Part of a photograph album related to John Sylvester Wheelwright's service with the Royal Naval Air Service, circa 1907-1943.
Technical drawing of airship components, circa 1910s-1920s.Part of a photograph album related to John Sylvester Wheelwright's service with the Royal Naval Air Service, circa 1907-1943.
Technical drawing, "East Fortune arrangement of suspensions of N.S.3 and N.S.4 [airships]," circa 1917-1921.Part of a photograph album related to John Sylvester Wheelwright's service with the Royal Naval Air Service, circa 1907-1943.
Technical drawing, "Arrangement of streamline blower pipe for N.S.3 [airship], circa 1917-1918.Part of a photograph album related to John Sylvester Wheelwright's service with the Royal Naval Air Service, circa 1907-1943.
Technical drawing, "Water ballast valve for N.S.4 [airship]," circa 1917-1921.Part of a photograph album related to John Sylvester Wheelwright's service with the Royal Naval Air Service, circa 1907-1943.
Items from Box 27, Folder 4 and Box 207, Folder 2 of the William P. and Moya Olsen Lear Papers, September 1940 through May 1941. Contains product "pitch" letters, diagrams, technical drawings, brochures, and price lists related to Lear products. 26…