English: A torpedo used by Ottoman submarines Abdul Hamid and Abdulmecid.
Above caption reads "Sivarskop Torpidosu" i.e. "A Schwartzkopf Torpedo", in reference to the manufacturer.
This work first published in the Ottoman Empire is now in the public domain because the Empire's copyright formalities were not met (copyright notice, registration, and deposit), or because the copyright term (30 years after the death of the author, sometimes less) expired before the Empire was dissolved (details).
Original upload log
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