22.5 cm M 15

22.5 cm M 15 is a mortar or artillery model.

Also recorded as 22.5cm Heavy Trench Mortar.

Overview

Type of heavy trench mortar.

In detail

It is associated with Austria–Hungary.

Sources

Each source is named with the standing the house places on it, so the evidence can be weighed rather than taken on trust.

reference work · Reputable secondary · Wikipedia
“22.5 cm Minenwerfer M 15”, English Wikipedia, consulted as further reading
Consult the source
reference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q1489794: 22.5 cm M 15
Consult the source