Isus, Balle de Golf, how rare. It is a gem and I think you should get hold of it. I got a vintage one (1970s) in calf box and it still looks good (sent to Hermes for refurbishment). My SA told me "Hermes do not make it anymore!" and I guess they are not well informed of what their company is doing.
There are 3 lengths to adjust the strap, you can wear it across the body, hang on the shoulder and as a carry-on!
There is a vintage one now at ebay, you can see how it holds its shape after all the years.