Warden/Fire Guard Helmet with Sector Marking.

MkII helmet probably used either by the Warden Service or Fire Guard with what looks to be sector identification ' 3A ' hand painted to front. MkII helmet with indistinguishable manufacturer's markings to rim with a 1939 dated MkI, size 7 liner by Vero. Good, used condition with some surface corrosion, abrasions etc.