A two-tierd wooden ring which is broken into five parts. Inner ring dimension: 1.0" (H) x 5.0" (inner ring) x 7.0" (outer) Created by James Walker Date Created 09/27/2012 Source Smithsonian National Air and Space Museum Keywords Aviation; Engineers; Equipment; People; Research Rights and Restrictions Not determined
For more information, visit the Smithsonians Terms of Use.