6 inch siege gun M1904
6 inch siege gun M1904 is a siege artillery or rifled breech loader.
Overview
Russian siege artillery.
In detail
It is associated with Russian 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
“6-inch siege gun M1904”, English Wikipedia, consulted as further reading
Consult the sourcereference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q4031914: 6 inch siege gun M1904
Consult the source