squirrel & acorn oak leaf salt and pepper shakers, vintage ceramic S&P set USA pottery

Unusual set of vintage ceramic salt and pepper shakers, one a squirrel, one an acorn with oak leaf. These don't appear to be marked aside from the worn decal Souvenir of Fisherman's Wharf.

These look like mid century USA pottery to me, maybe California pottery? Squirrel is about 3" tall, and in very good condition. Leaf shaker has a few glaze skips and chips, see photos.