FAB-250
FAB-250 is a 250 kg bomb or aerial bomb.
Also recorded as FAB250; FAB-250-270.
Overview
250 kg high-explosive bomb.
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
“FAB-250”, English Wikipedia, consulted as further reading
Consult the sourcereference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q15565173: FAB-250
Consult the source