URL: https://digitalcollections.hoover.org/objects/40718 Collection Structure Poster collection > Carelessness with explosives is a waste of needed manpower! In these critical times, be careful! ... [Verso:] Wilyum Jan says ... Item Title Carelessness with explosives is a waste of needed manpower! In these critical times, be careful! ... [Verso:] Wilyum Jan says ... Collection Title Poster collection Artist Chapin Issuing Body Hercules Powder Company Date Created 1942? Description Drawing of men caught in an explosion. Double-sided. Subject(s) Industrial safety World War, 1939-1945 Military aspects United States Economic aspects Explosives Safety measures Explosions Industrial accidents Prevention Priorities, Industrial Safety education, Industrial Manpower Accidents Explosives industry Language(s) English Country of Origin United States Place Published Wilmington, Delaware, United States Country of Origin United States Dimensions Overall: 22 x 16 in. (55.9 x 40.6 cm) Format Poster Medium political posters Color color Color color Hoover ID Poster US 6886 Record Number XX343.31094 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.