Corning Ware Corningware - 2 plates no chips The CorningWare P-185-B is a white, square, 6 3/4-inch "Snack-It" or "Grab-It" plate, often part of the "White Coupe" line, with production spanning the 1980s to early 1990s, though some sources point to a circa 1960 start for the design, with the P-185-B specifically popular in the later decades for individual servings, identifiable by its tab handle and Pyroceram material. Key Details: Model: P-185-B (Snack-It / Grab-It Plate). Color/Pattern: All-white, often called "Centura" or simply "White Coupe". Size: Approximately 6.75 inches square. Era: Popular in the 1980s and 1990s, part of the vintage CorningWare era. Material: Made from Pyroceram.