Cast iron lamb mold #866, made by Griswold in Erie, PA. This is a 1930's version, 13" long and back piece overlaps front. This version is the chrome over cast iron, it is not aluminum. These lamb molds were often used to make adorable cakes for Easter!
Vintage estate find, please see photos. There is some wear to the chrome around the nose and in a few spots inside. Chipped chrome is recommended for display only.