Comparing: Heavy Tank No. VI vs. KV-85

In 1943, the Japanese ambassador to Germany attended Henschel's field trials of the Tiger. After that, the company was ordered to transfer all tank documentation to Japan. One disassembled Tiger was sent to Bordeaux on October 14, 1943, to be delivered to Japan by submarine. However, the vehicle was never delivered, and the Japanese were never able to establish their own production of Tigers. This enterprise cost 645,000 Reichsmarks to Japan, while the original cost was 300,000 Reichsmarks.

A further development of the KV-1S tank. Unlike the previous modification, the KV-85 had enhanced armament. The vehicle was developed in the spring of 1943 at the Chelyabinsk Kirov Plant. The tank entered service on August 8, 1943, and was mass produced until September, with a total of 148 vehicles manufactured. The KV-85 was used by the breakthrough armored regiments of the Red Army.