Freely downloadable at the Internet Archive, where I first uploaded it: Archive.org. National Archives description: "A British Navy training film. Reel 1 demonstrates attack and counterattack methods of hand-to-hand combat and defense against an attacker bearing a knife or a club. Shows the use of the helmet as a shield and as a weapon. Reel 2 demonstrates how to tie a prisoner and how to escort a prisoner. Methods of disarming an opponent are shown." National Archives Identifier: 24482
