Cannone da 70/15
Cannone da 70/15 is a mountain gun or artillery model.
Also recorded as Da 70/15.
In detail
It is associated with Italy.
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
“Cannone da 70/15”, English Wikipedia, consulted as further reading
Consult the sourcereference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q1388207: Cannone da 70/15
Consult the source