This is the Russian TM-46 and TMN-46, High-Explosive-Blast (HE-Blast), large, metal-bodied, Anti-Vehicle (AV), landmines that may be laid mechanically or by hand, also copied in China and designated the Type 59. In addition to conventional pressure fuzes (MV-5 and MVM), the landmine accepts a Tilt-Rod-Fuze (TRF) MVSh-46. The TRF mast is used to increase reliability in certain ground conditions but is too low to give the landmine a reliable Full-Width-Attack-Mine (FWAM) capability against vehicles.
The cylindrical body has a stepped pressure plate with a centrally threaded fuze well. The lower section of the body contains the main-charge around a central booster, with an air gap between the encased explosive and the pressure plate. On the side of the landmine is a steel carrying handle and filler plug, with six reinforcing ribs stamped into the base of the landmine.
The landmine is actuated by 200kg of pressure if the MVM or MV-5 fuze is used or by 21kg of lateral force if the MVSh-46 TRF is used.