World War 2 Canadian Army Camouflaged Anti-Gas Helmet Cover. The anti gas cover is constructed of a two tone green and brown wax covered light canvas like material. The cover is nicely maker marked by the company 'ARISTO' from Gault (Ontario) and dated 1941. It is also marked with the Canadian Broad-Arrow. There is some minor damage and one larger tear, see photos. Nice original anti-gas helmet cover in good used condition!