DESCRIPTION. The spherical shaped body of the mine consists of concrete with embed-ded shrapnel used as an aggregate. A central cavity is provided for insertion of the ex-plosive charge which may be either two 500-gram charges and a 200-gram charge on only one 500-gram charge may be used with the 200-gram charge so that the igniter as-sembly is countersunk into the mine. (See fig. 242.)

OPERATION. The igniter may be pulled by hand, initiating the safety fuse which in turn, fires the detonator and charge. In such a case, the mine may be rolled down a hill or cliff into enemy troops. It is possible to peg the igniter to a stake below the bomb in such a way that if an attempt is made to remove the mine, the igniter will be actuated.

Figure 242 – Concrete Ball Mine – Antipersonnal