Made of various metals, a 3 3/4" fan connected to meter gauge through geared mechanisms. Fan's outer edges enclosed in a circular metal housing with a vertical bar centered across front and back. Gauge is marked 0-99, hatch marks for each unit of 1 and multipes of 10 numbered. Created by Jeannie Whited Date Created 09/21/2021 Source Smithsonian National Air and Space Museum Keywords Aviation; Engineers; Equipment; Inventors; People; Research Rights and Restrictions Not determined
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