15 cm SK C/25 gun
15 cm SK C/25 gun is a naval artillery or rifled breech loader.
Overview
German naval artillery.
In detail
It is associated with Weimar Republic.
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
“15 cm SK C/25”, English Wikipedia, consulted as further reading
Consult the sourcereference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q3890746: 15 cm SK C/25 gun
Consult the source