URL: https://digitalcollections.hoover.org/objects/40693 Collection Structure Poster collection > ... Open fires and explosives never mix! Such tragedies may be prevented ... [Verso:] Wilyum Jan says ... Item Title ... Open fires and explosives never mix! Such tragedies may be prevented ... [Verso:] Wilyum Jan says ... Collection Title Poster collection Artist Chapin Issuing Body Hercules Powder Company Date Created 1938/1939? Description Drawing of men caught in an explosion. Double-sided. Subject(s) Military aspects Explosives industry Economic aspects Safety measures Accidents Explosives Manpower Priorities, Industrial Explosions United States Industrial accidents Industrial safety Safety education, Industrial Prevention World War, 1939-1945 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 6862 Record Number XX343.31069 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.