Becker Type M2
Becker Type M2 is an autocannon or anti-aircraft gun.
Also recorded as M2; 20 mm Becker; Spandau Type 3; Type 3 20mm cannon; SEMAG L.
Overview
20 mm autocannon aircraft armament.
In detail
It is associated with German Empire.
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
“Becker Type M2 20 mm cannon”, English Wikipedia, consulted as further reading
Consult the sourcereference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q813702: Becker Type M2
Consult the source