This Vintage Pyrex Primary Colors 8 Piece 501, 502, 503 Refrigerator Dishes & Lids set is a mid-century modern collectible from California, manufactured in the 1950s. Made of glossy milk glass with a multicolor solid pattern, these original Pyrex dishes feature a rectangular shape and come with lids. The set includes 8 pieces with 1 compartment each, perfect for adding a touch of Americana to your kitchen decor. Hand wash only to preserve the integrity and nostalgia of these classic pieces. This set is in very good vintage condition! The yellow is practically pristine. There are a few small flea bites on the blue and red dishes (see pictures), but the color is so vibrant with no dishwasher damage. Glass covers are in perfect condition.