Cnp submarine u53 01
Originally scanned from: GWS - The Great War: The Standard History of the All Europe Conflict (volume four) edited by H. W. Wilson and J. A. Hammerton (Amalgamated Press, London 1915)
According to http://www.firstworldwar.com/photos/sources.htm, “Each photo is believed to be copyright-expired except where indicated.” The site has been up for seven years and sources for the photos cited so it is reasonable this claim of copyright expired status has stood the test of time.
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U 53 (U-Boot, 1916)U 53 war ein diesel-elektrisches U-Boot der deutschen Kaiserlichen Marine, das im Ersten Weltkrieg zum Einsatz kam. Es war das erste deutsche U-Boot, das Handelskrieg vor der Ostküste der Vereinigten Staaten führte. .. weiterlesen