Only the right eye, the top of the nose and the right side of the forehead survive intact. Also, the right hand side of the hinge in the centre of the forehead.
References:
Beck, F. & Chew, H. (1991), "Masques de Fer. Un officer romain du temps de Caligula", Editions de la Réunion des musées nationaux, Paris (Exhibition catalogue), p.120, Fig.74a
Garbsch, J. (1978), "Römische Paraderüstungen", (München), 64, Cat.no. O.15
