Ostwind
Ostwind is a Flakpanzer IV or self-propelled anti-aircraft gun.
Also recorded as Flakpanzer IV/3.7 cm FlaK; 37L60 on Flakpanzer IV; FlaK 43/1 L/60 on Flakpanzer IV.
Overview
1944 German self-propelled anti-aircraft gun.
In detail
It is associated with Nazi Germany.
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
“Ostwind”, English Wikipedia, consulted as further reading
Consult the sourcereference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q697664: Ostwind
Consult the source