This grenade is a product from the last months of the war.
The body was made out of concrete, mixed with metal fragments, formed in a paper mold.
It held a 150gram nipolit charge, held under a metal cover.
The charge held a threaded metal adapter, to accept the igniter.
Height (body only) 74mm, Width 50mm.
Igniters BZ39 or BZ40.
30 grenades were packed in wooden cases with the fuzes and dets separate in the same box.