It is a bullnose skinner. Actually a very useful pattern. Mine is not a round and wide as that but same idea. It allows you to work the knife very fast without really needing to worry about the tip poking holes in your fur. I don't know anything about the maker, sorry I can't help you there.

Here is a picture of mine I had custom made.
[Linked Image]

Eat Fish, Wear Grundens, Drink Alaskan.