Austrian Jam Tin Grenade

Heres a rare find. It is an officially made "Jam tin Bomb" It is a simple tin can with a crimped on lid which has a small tin flap which covers a simple bickford fuze with a friction igniter "like a large match head".

Inside is a smaller tin which still has a cardboard liner. This is probably the original packaging for the explosive

In between the inner and outer tin is lots of small pieces of iron fragments. You can see these through a hole on the outer tin.

If anyone knows the official name for this grenade please let me know.