TM-1-14
TM-1-14 is a railway gun or artillery model.
Overview
WW2 Soviet heavy railway gun.
In detail
It is associated with Russia and Ukraine.
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
“TM-1-14”, English Wikipedia, consulted as further reading
Consult the sourcereference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q5932252: TM-1-14
Consult the source