1 finding aid(s) found containing the word(s) Photographic prints--1900-1950.

  1. Oskar Ursinus collection of aeronautical pictures

    ca. 800 items (photographs, reproductions, drawings). -- Prints & Photographs Division, Library of Congress, Washington, D.C.

    Summary:

    Images show model airplanes; sailplanes; motorless hydroplanes; gliders; civilian and military airplanes; rotary wing aircraft; aircraft engines and parts; parachutes; armaments; competitions and air shows; aviators and aerobatic champion pilots; manufacturing; airships and balloons; etc. Also some technical material (design, structural, and analytical drawings) relating to aerodynamics, theory...