The Grenade Recognition Manual
Grenade Data Sheet

Designation-  Unknown Country of Origin-  Czechoslovakia
Type- Throwing dummy Years or Era-  
Weight  
Diameter  56 mm
Length- Total  117 mm
Length- Body  
Fuze Designation  
Fuze Type  
Fuze Delay  
Filling Type  
Filling Weight  
Detonator  
Body Material  Rubber
Effective Radius   

Manufacturer-  Gumarny Zubri factory Markings-  Embossed markings
Notes-  Designed for throwing practice.  Shape evolved from the VZ21 grenade.  Used in the Czech Army,  Svazarm (former political communist organization for youth training and military promotion), schools and sport competetions.  It was possible to buy these in Sports equipment stores as well.  There are two versions, one with a hanging ring, the other without.  Grenade is solid rubber.