what is?

[Vincedu29]

hello

I present you this head of shells. It seems that heads of shelling shells were made during the war. I have not found any pictures, can you help me identify this head? it is made of soft resin.
SIZE : 50mm l, 70mm H
Thank you for help.

[klarkon]

I do not know any shell head (artillery fuse) made in from soft resin . . . .