US17A1 helmet. Metal helmet shell. ZA 57 manufacture. Exterior paint with 70% cork. Some dents visible. Inside of shell with green gloss paint. Leather cap heavily greased, drawstring present. No visible markings. Chinstrap complete but heavily worn. Some wear and patina. Condition II+. US M1917A1 helmet Steel helmet shell, marked ZA 57. Exterior cork-textured paint remaining at approximately 70%. Several visible teeth. Interior retaining glossy green paint finish. Leather liner heavily treated, with drawstring present. No visible markings. Chinstrap complete but heavily worn. Showing expected wear and patina. Condition II+.