81 KRH 71 Y
81 KRH 71 Y is a 81 mm mortar or artillery model.
Also recorded as 81 Kranaatinheitin 71 Y; 81 mm mortar KRH 71 Y.
Overview
1970s portable 81 mm mortar of Finnish origin.
In detail
It is associated with Finland.
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
“81 KRH 71 Y”, English Wikipedia, consulted as further reading
Consult the sourcereference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q4644536: 81 KRH 71 Y
Consult the source