The cheek pieces are cut to follow the line of the jaw on the rear and lower edges with semi-circular cuts-outs for the eyes and mouth. Behind each cusp is an embossed crescent and a recessed border follows the rear and lower edges.
The brim of this helmet carries no rivets.
Photo, (c) Sylvain Lamotte
References:
Robinson, H.R (1975), "The Armour of Imperial Rome", Arms & Armour Press, p.42-3, No.92
Verchèrede Reffye (1864), "Les Armes d'Alise"
Coutil, L. (1912), "Le Casque d'Or Orné d'Emaux et le Casque en Fer de Notre-Dame-du-Vaudreuil. Etude Comparative des Casques Gaulois", (Paris), p.14.