Clam Magnetic Mine is a British WWII era sabotage device, designed as a small version of the Naval Limpet mine. Clam existed in three versions: Mk I with a stamped sheet metal casing, and Mk II and Mk III with a bakelite plastic casing. Most common version Mk III had the explosive charge of 8 oz (226 g) of TNT or Tetryl 55/45.
Clam mines were used by British commandos, and they were also supplied to European Resistance forces. A number of Clam mines were delivered to USSR under Lend-Lease and found usage among Soviet partisans. There is a claim that the Clam mine was used for the assassination of Generalkommissar Wilhelm Kube in Minsk in 1943.
The Clam Mine and variants can be seen in the following films, television series, video games, and anime used by the following actors: