3.7 cm FlaK 43
3.7 cm FlaK 43 is a 3.7 cm Flak 18/36/37/43 or anti-aircraft gun.
Also recorded as 3.7 cm Flakzwilling 43; 37mm Flak 43.
Overview
Type of anti-aircraft gun.
In detail
It is associated with Nazi Germany and 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
“3.7 cm Flak 43”, English Wikipedia, consulted as further reading
Consult the sourcereference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q23936240: 3.7 cm FlaK 43
Consult the source