A rectangular instruction manual for the Longines Hour Angle Watch. The book is stapled on the edge with two staples. The front and back cover both fold out with detailed images of the face of the watch inside both covers. The manual is printed in different languages including: Dutch, English, and Spanish. Created by Smithsonian National Air and Space Museum Date Created 03/15/2022 Source Smithsonian National Air and Space Museum Keywords Aviation; Memorabilia; People; Popular Culture Rights and Restrictions Not determined
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