Mauser MG 151
Mauser MG 151 is an autocannon or aircraft artillery.
Also recorded as MG 151/15; MG 151/20; Maschinengewehr 151.
Overview
15 mm autocannon aircraft armament.
In detail
It is associated with Nazi Germany.
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
“MG 151 cannon”, English Wikipedia, consulted as further reading
Consult the sourcereference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q698638: Mauser MG 151
Consult the source