Lanchester submachine gun
Lanchester submachine gun is a submachine gun or weapon model.
In detail
It is associated with United Kingdom. The record gives 1940 as its date of establishment or first appearance.
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
“Lanchester submachine gun”, English Wikipedia, consulted as further reading
Consult the sourcereference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q1515849: Lanchester submachine gun
Consult the source