
This plastic cased RO-1 fuze is identical to the World War II German Model Z.Z. 42.
This pull fuze is used with the PP-Mi-Sr antipersonnel mine and the PT-Mi-D antitank mine.
A pull on the loop or pressure on the wings of the striker retaining pin frees the spring-loaded striker to fire the percussion cap.
TM 5-280, Foreign Mine Warfare Equipment (chg 1, 1971)