
The Model RO 7-11 fuze has a plastic body with a plastic cap cemented on the top. It has only two metallic parts—the striker point and the helical striker spring, which rests between the cap and the striker.
This plastic-cased model is used as a pressure igniter in the PP-Mi-Ba bakelite antitank mine.
No information about functioning.
TM 5-280, Foreign Mine Warfare Equipment (chg 1, 1971)