This is a version of the standard late pattern F.A.A. C-type with zipped earpieces. Originally these formed part of a complete one-piece immersion suit which was both bulky and unpopular - hence many helmets were separated/cut off and worn alone. Made of unlined white tanned cape leather treated with Alum salts to increase water repellency. It is very similar in appearance to the standard late pattern C-type bar minor wiring channelling variations. No size markings but seems quite large. The leather is in very good condition and apart from some fairly minor stains/marks is remarkably clean for a white helmet! It is fully supple and free from damage or notable wear. Both earpieces are good with excellent zips - each complete with the original leather puller tags. The inside of the helmet has less than average soiling. All of the straps are good and retain virtually all of the original brown coatings on the press studs. Excellent chin strap retaining a good deep colour and full elasticity. Internally wired with full mid tan loom, early brown cased jackplug but lacks receivers. Remnants remain of the latex used to seal the receivers into the carriers within the earpieces. These also have a pair of dry but flexible Air Ministry sponge rubber ear cushions. The receiver carriers are suitable for use with Gosport tubes too. A rare helmet in in very good used condition. Stock code H20494.