Royal Ordnance L7
Royal Ordnance L7 is a tank gun or artillery model.
Overview
British tank gun.
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
“Royal Ordnance L7”, English Wikipedia, consulted as further reading
Consult the sourcereference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q1542505: Royal Ordnance L7
Consult the source