M42 Duperite helmet
Helmet issued to Australian paratroopers during World War II / From Wikipedia, the free encyclopedia
The M42 Duperite helmet was a paratrooper helmet issued to Australian paratroopers during WW2 and was produced by The Australian Moulding Corporation. The helmet got its eponymous name from the shock impact-absorbing material it was composed of. It was similar to the first of the British dispatch rider helmets.