E-1 on the stocks in Cadiz, 1931
Spanish submarine E-1 at the shipyard in Cádiz. Built in Spain from 1929-30, Soviet engineers participated in her construction and trails. Although her design would go on to be used as the basis for both the German Type IA submarine and the Russian Stalinets class, ironically, the Spanish Navy never operated E-1, as she was sold to Turkey in 1935 just before the outbreak of the Spanish Civil War. She went on to fly the star and crescent until 1947 as TCG Gür.