URL: https://digitalcollections.hoover.org/objects/39900 Collection Structure Poster collection > Vital spots. Small bearings play big parts in war ... Item Title Vital spots. Small bearings play big parts in war ... Collection Title Poster collection Issuing Body United States. Army Publisher United States. Government Printing Office Date Created 1943 Description Five photographs showing various war machines using ball bearings. Subject(s) Mechanization, Military United States Transportation Motorization, Military Economic aspects World War, 1939-1945 Ball-bearings Language(s) English Country of Origin United States Country of Origin United States Place Published Washington, United States Dimensions Overall: 22 x 32 in. (55.9 x 81.3 cm) Format Poster Medium political posters Color color Color color Hoover ID Poster US 6199 Record Number XX343.30276 Collection Guide https://oac.cdlib.org/findaid/ark:/13030/kt829015km Rights This work may be protected by copyright laws and is provided for educational and research purposes only. Any infringing use may be subject to disciplinary action and/or civil or criminal liability as provided by law. If you believe you are the rights holder and object to Hoover's use of this work, please contact the Hoover Institution Library & Archives.