Bofors 155 Bonus
Bofors 155 Bonus is a shell or ammunition model.
Overview
155 mm artillery cluster round.
In detail
It is associated with Sweden and France.
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
“Bofors/Nexter Bonus”, English Wikipedia, consulted as further reading
Consult the sourcereference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q20922293: Bofors 155 Bonus
Consult the source