This grenade was exactly the same as the French (WW2) defensive grenade Mle37.
It used the Mle35 grenade fuze which, in Holland, was called Ontsteker Nr12.
Length w fuze: 100mm , length w/o fuze: 72mm , Diameter: 55mm.
Weight: 600gram , Filling: 60gram.
The manuals says that fragments fly up to 100 meter, safe zone is 300 meter.
Photos © B. Bosman.