ASU-57
ASU-57 is a tracked tank destroyer or assault gun.
Also recorded as ASU57.
Overview
1950s self-propelled 57 mm gun.
In detail
It is associated with Soviet Union.
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
“ASU-57”, English Wikipedia, consulted as further reading
Consult the sourcereference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q298078: ASU-57
Consult the source