Vintage Pyrex 501 1.5 Cup Refrigerator Dish Set - Yellow, Red, Blue

Vintage Pyrex Refrigerator Dish Set, Primary Colors: Yellow (501), Red (501), and Blue (502). Includes three dishes with original ribbed glass lids.  Description: - Yellow dish: Model 501, 1.5 cup capacity - Red dish: Model 501, 1.5 cup capacity - Blue dish: Model 502, approx. 1.5 quart capacity - Material: Opal glass with colored enamel exterior - Features: Classic stackable design, clear glass covers - Origin: Made in USA  Condition Details: Used-good vintage condition. The enamel shows some minor scuffing and light paint loss along the top edges and sides consistent with age and use. No significant chips or cracks observed in the glass dishes or lids. Please see photos for close-up details. This set is a staple for mid-century modern kitchen collectors.