MG 30
MG 30 is a machine gun or firearm model.
Also recorded as Maschinengewehr 30.
In detail
It is associated with Austria.
It is recorded in the collection of Bundeswehr Museum of German Defense Technology.
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 30”, English Wikipedia, consulted as further reading
Consult the sourcereference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q301389: MG 30
Consult the source