This is a somewhat rare original WWI German helmet liner model M16. These are the earlier model still possessing the all leather mounting ring (later to become a steel band in the model M17). This pieces rear stitching is not attached. It will fit helmets sized 64cm and 62cm. There is shrinkage to the band and the entire leather liner is quite rigid. I hope someone out there can either use this piece or add it to their 'parts box' for future use. Email with questions. For Sale to the lower 48 States only. PayPal payments ship fastest. Please add $10.00 for Priority/Insured postage. Thanks.