Stores reference 22C/1520. Size 2 Broad. 1955 dated. By Helmets Ltd. of Wheathampstead. Classic early bonedome worn in conjuction with the type F inner helmet that contained the avionics and to which an oxygen mask could be fitted. The rare MK.1 is a basic protective helmet in leather lined fibreglass. It has a simple nylon webbing suspension system fitted inside to give a comfortable fit over the inner cloth helmet (not supplied). This MK.1 helmet has been modfied to form a Mk.1A with the addition of an anti-glare visor, comprising a centre rail attachment and mechanism with a replaceable tinted acrylic anti-glare screen. Later factory produced Mk.1A helmets have a raised profile at the centre to which the visor track is fitted. The helmet is in the original silver paint finish and this is generally in good overall condition bar light scratches and a few small chipped areas. The rubber edge roll is complete and undamaged. Fitted with a very good visor track mechanism, tinted visor and chinstrap. The lining is reasonably clean and has manufacturer's details and stores reference marks. Also comes with the original protective cloth visor cover. An interesting modification to the rarely found Mk.1 helmet. Good overall condition. Stock code H24091.