In October 1939, the Soviet Union approached Germany with a request to purchase the then unfinished Admiral Hipper-class cruisers Lützow, Seydlitz, and Prinz Eugen, along with plans for German capital ships, naval artillery, and other naval technology. The Kriegsmarine denied the request for Seydlitz and Prinz Eugen, but agreed to sell Lützow, as well as 38 cm (15 in) gun turrets and other weaponry.[7] The price for the heavy cruiser was set at 150 million Reichsmarks,[8] nearly double the original cost of the vessel, which was 83,590,000 Reichsmarks.[3] Complete technical specifications, the results of engine trials, and spare parts were included in the sale.