Pig Charm Hog Sterling Silver Piglet Piggie Rub A Dub Tub Mop

Rub a dub dub - little pig in a tub - actually I think it's a mop and bucket ? Just realized there isn't a jump ring but I'll make sure one is added. Only one I have - there is a makers mark on the backside but I do not recognize it. It's a beefy piece weighing 6 grams. This is an older piece not new - lost wax cast. This is a RARE one.