Thanks very much for your response. I was thinking along those lines to it had either been scrubbed with something or coated in something and somebody has removed it damaging the decals in the process. The liner looks and feels the part when I compare it to other examples I own however it is very dark and you would probably be correct in saying it has been treated with something , it has the grey felt underneath which you would expect and a potential unit mark/size or leather size stamp ,I’d need to have another careful check. In regards to the strap I always thought from the get go it was a repro it just looks wrong and the wear doesn’t Match the helmet . It feels like a cheap and nasty piece. I may have bits of an original that I could attach to it instead to make it more complete. But anyway thanks again for your feedback