"A countenance more in sorrow than in anger." - Hamlet (1.2.231), Horatio, describing to Hamlet the apparition he has seen on the platform. ~"Even though the Ghost was in full battle armour, Horatio could see his face because "he wore his beaver up" ... [beaver = helmet visor].
Kropserkel: Dark Rider Nazgul WitchKing costume and armor
Savoyard Helmet (The Original Totenkopf Helmet–1600)