Bofors 40 mm
Bofors 40 mm is a 40 mm anti-aircraft gun or artillery family.
Also recorded as Bofors gun; 40 mm gun Bofors; 40 mm autocannon Bofors.
Overview
Autocannon family by Bofors.
In detail
It is associated with Sweden.
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
“Bofors 40 mm gun”, English Wikipedia, consulted as further reading
Consult the sourcereference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q1132216: Bofors 40 mm
Consult the source