Philofaxy, it seems it's a Winchester king crocodile calf leather print according to here. I really don't know much about vintage filos, but believe the Winchester is a bit of a classic.
Despite some scuffs, which I hope will polish out, it's in great condition for its age and the earliest inserts are dated either 1984 or 1985. The ring mechanism is sound and shuts with a healthy click. I had considered keeping it, but really don't feel the need for another filo (even a vintage one) and it'll be going on eBay when it's a little more cared for.