Early Signal Corps instruction book for Power Unit PE-76-D adding to its value as

adding to its value as an all-original piece

and they remain highly collectible today—especially when accompanied by the original box and paperwork as seen here

such as a fighter or bomber

3d Printed Shell

Early Signal Corps instruction book for Power Unit PE-76-D adding to its value asEarly Signal Corps instruction book for Power Unit PE 76 D, published June 30, 1941. Manufactured by United States Motor Corp., Oshkosh, Wisconsin, and issued under authority of the Chief Signal Officer. Nice prewar early WWII military technical manual with strong appeal for Signal Corps, communications, and military generator or power unit collectors.