Gammon bomb
Gammon bomb is a hand grenade or ammunition model.
Overview
British hand grenade.
In detail
It is associated with United Kingdom. The record gives 1941 as its date of establishment or first appearance.
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
“Gammon bomb”, English Wikipedia, consulted as further reading
Consult the sourcereference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q2400286: Gammon bomb
Consult the source