Madsen machine gun
Madsen machine gun is a light machine gun or weapon model.
In detail
It is associated with Denmark. The record gives 1890 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
“Madsen machine gun”, English Wikipedia, consulted as further reading
Consult the sourcereference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q1050536: Madsen machine gun
Consult the source