Studio Pottery Mark Goat Head? ID pls help

So I know studio pottery is often hard to identify, but this is so distinctive, and the mark is so distinctive, thought I would give it a try. The mark appears to be a goat head. There is also a stamped 'P' and a stamped 'C' on the bottom. The item is a jar with a walrus finial on the lid. It appears to me to be perhaps salt glazed stoneware.
I can't find anything like it or the mark. Any help would be greatly appreciated!