trench mortar

At the top of the hill, in the middle of a filthy big pool, is a ruined enemy trench-mortar, sitting up like a swollen toad.

The 2-inch trench-mortar fired a bomb exactly similar in shape to the hammer used in Highland games in throwing the hammer.

On 2nd September, a 2-inch trench-mortar battery arrived, though its ammunition did not join it till 7th October.

Next to mining, the most nerve-racking form of trench warfare was provided by the trench-mortar.

In the early part of 1916 the trench-mortar situation was greatly improved.