Italian Maschera Antigas S.I.P. 1

The Italian Maschera Antigas S.I.P. 1 was an early Italian helmet mask.  It was made of very thin dark brown rubber, and had round celluloid eyepieces.  This example was made by Pirelli in 1934.

Maschera Antigas = "Gas Mask"

S.I.P. - Società Italiana Pirelli = Italian Company Pirelli

Similar masks in my collection:  Italian L.B./v.n.