Set of four black painted brass plates used to help secure Mk.IV series goggles in place on the airman's helmet. Normally associated with the B-type helmet but sometimes fitted on C-types and other helmets. In use the larger plate was riveted above the receiver carrier with the smaller one fitted beneath it. The sprung fabric loops of the goggle passed through the open tubular channels of the lower plate whilst they needed press studded retainers to fasten to the upper plates. Technically helmet plates were intended for use with the Mk.IVA goggle alone but they were widely used with the Mk.IVB. Minor paint loss but in excellent overall condition. Stock code G18472.