42 line gun M1877
42 line gun M1877 is a siege artillery or rifled breech loader.
Overview
Type of siege gun.
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
“42-line fortress and siege gun Pattern of 1877”, English Wikipedia, consulted as further reading
Consult the sourcereference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q4031355: 42 line gun M1877
Consult the source