I had not considered that the lug on the side might be for a spoon, partly because most examples I have seen have a ring in the lug, supposedly for carrying, and the IWM example has the simple brass fuse body.
I was aware that the Turks used ball grenades, and have seen photos of several examples. What kind of provenance does the IWM have on their Turkish #2 grenade?
Best
Gus