This smoke signal grenade was constructed by Ruggieri.
They were made in three variations, Red, Yellow and Green.
Smoke was emitted for 2.3 minutes.

Length w/fuze : 175mm
length w/o fuze : 150mm
Diameter : 55mm
diameter(meas. over spoon) : 63mm
Weight : 530gram (with fuze)
Filling : colour smoke mixture
Fuze : BA-35 (2 seconds), F8 or F10.

These grenades were issued 5 in a metal box or 40 in a wooden case.