French riot helmet of the Compagnies Républicaines de Sécurité type, the dark blue shell decorated with two yellow stripes, a flaming grenade and a silver crest; leather and canvas inner lining; marked ‘Petitcollin 1974’ (dimensions 20 x 23 x 26.5 cm – wear and tear, scratches, oxidation, soiling and a worn inner lining; sold as is)