This a replica of the Wehrmacht M43 stick grenade; a further development of the "Potato Masher" M24 stick grenade. It has the fuse on top of the grenade head and head can be unscrewn from stick.
Darkyellow 43 Wehrmacht paint.
The stick is from wood, stamped hkz43, and the head from steel. The igniter button is coloured blue which meant a delay of explosion of 4,5 seconds.
Finest 1:1 reproduction.