Hand wash only is recommended for its care. The bowl is stamped "Fire-King OVEN WARE 1 Made in USA".
Made by Anchor Hocking under the Fire-King brand. As with most Fire-King this batter bowl has some striations, minor inclusions, bumps/dimples and mold seams.
See close up photos around handles, rim and inside. Interior utensil marks are present but no aluminum markings.