Type 100 submachine gun
Type 100 submachine gun is a submachine gun or weapon model.
In detail
It is associated with Japan and Empire of Japan. The record gives 1939 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
“Type 100 submachine gun”, English Wikipedia, consulted as further reading
Consult the sourcereference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q1141411: Type 100 submachine gun
Consult the source