FIROS
FIROS is a multiple rocket launcher or artillery model.
Also recorded as Firos rocket launcher; 122 mm rocket launcher FIROS.
Overview
Multiple rocket launcher system of Italian origin.
In detail
It is associated with Italy.
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
“Firos (artillery)”, English Wikipedia, consulted as further reading
Consult the sourcereference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q93737: FIROS
Consult the source