This vintage lot includes three Pyrex primary blue clear bottom glass mixing bowls, specifically the 322, 323 and 325 sizes. The set is a three-piece solid round bowl set, perfect for all occasions. Made in the United States, these original bowls feature an impressed backstamp and are part of the Pyrex Primary Colors product line. The blue color and glass material add a touch of retro charm to your kitchen décor. Care instructions recommend hand washing only to maintain their vintage beauty. small bowl has 1" fine scratch from vintage wear. see photos. bin 2,1