ML 3 inch mortar
ML 3 inch mortar is a 81 mm mortar or artillery model.
Also recorded as 3-inch mortar ML; 81 mm mortar ML 3-inch; Ordnance ML 3-inch; Ordnance ML 3in Mortar.
Overview
1930s British mortar.
In detail
It is associated with United Kingdom.
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
“ML 3-inch mortar”, English Wikipedia, consulted as further reading
Consult the sourcereference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q265220: ML 3 inch mortar
Consult the source