I found this strap in the case when I bought a 1957 Mark 6 tenor saxophone. There were other accessories like an old saxophone stand from the 60s made from steel with that special hammer tone coating, but I find this strap really interesting. I can't imagine this was originally made for tenor, but I'm sure you will be able to tell me details about it. The part that says "Selmer" is plastic. The back is black and says "Made in England".