DESCRIPTION. These two wooden box mines are similar to the Schumine although some-what lager. (See fig. 225.) Both A and B types are very similar, consisting of a wooden box containing 6 kg of picric acid in damp proof paper. The initiating charge in each case is a standard 200-gm charge built up on wooden blocks to enable the igniter to fit into it. On the inside cover of the box is painted the letter A or B showing the type of mine, and a label, giving instructions for installation.

OPERATION. Type A is actuated by pressure on the box lid, causing the shearing of two 1/2-inch wooden dowels and pressing out the link pin of the Z.Z. 42 igniter.

Type B is actuated by pressure on the box lid shearing 3/4-inch wooden dowels and exe-ring pressure on the head of the two Buck chemical igniters.

Figure 225 – Panzerschnell Antitank Mine