
This is a pressure-fired, nonmetallic, high-explosive (blast), antitank (AT) landmine. The mine uses either an Ro-7, Ro-7-II pressure-actuated fuze, or an Ro-7-III pressure-actuated /antiremoval fuze. The fuzes are externally identical.
The mine is dark green or brown and has nomenclature stenciled in white or red on the bottom of the mine case.
Force on the pressure plate ruptures the shear groove, puts pressure on the fuze, and thus activates the detonator and starts the firing chain.
Nothing else to see.
TM 5-280, Foreign Mine Warfare Equipment (chg 1, 1971)