This 47mm mortar shell was used by the Finnish army during ww2, and had a System32 fuze fitted.
The tailsection was removed and the base was sealed with a plug.

(Drawing on the right © Evgeny)

Bernt's grenade on the right shows an aluminium safetycap.


The 2 drawings below came from a Russian WW2 manual.

Photos below © Francesco Zanardi