This stickgrenade has about the same components as the German stickgrenade, but in different sizes. It was developed in the 1920's and was used up to the 1950's. The saftety cap looks the same as the ww1 types used by the Germans.

Total length: 270mm , Body length: 100mm.
Diameter: 61.5mm.
Weight: 770gram.
Filling: 350gram TNT or Ammonal.
5.5seconds friction fuze.

The photo on the sectioned grenades © Dimitar Mitev