Original British Ministry of Defense Fire Helmet Hand Select:Yes Heliographs

Heliographs

The trial was inconclusive but was followed by further development and more trials

The "DN" referred to the patent identification associated with the helmet's model or type

These are the genuine Special Forces issue

and used a very unusual trigger system that could be set to give the double-stage pull found on military rifles or the single-stage pull favored on target rifles

Original British Ministry of Defense Fire Helmet Hand Select:Yes HeliographsOriginal Item: Just released from British Ministry of Defense stores, these are the Spaceman style Fire Fighting Helmets issued to the British Military for combating fuel and chemical fires. A hard plastic composition space type helmet with metal grill reinforced transparent hinged visor. Fire retardant silver neck and shoulder protector, complete with liner. Ready to wear! An interesting and unusual piece of official military firefighting equipment