Corning Ware Cornflower Blue Rectangular Baking Dish

This is a vintage Corning Ware rectangular baking dish, likely the P-4-B (2 quart) or similar model, featuring the iconic 'Cornflower Blue' floral design. The dish is constructed from Pyroceram, a high-durability white glass-ceramic material developed by Corning Glass Works that is resistant to thermal shock, allowing it to move from freezer to oven without cracking. The exterior and interior are a bright, semi-glossy white, with the triple-flower blue cornflower motif centered on the long side. This motif consists of three stylized blue flowers on green stems with small leaves, which was the signature pattern for the brand from 1958 through the late 1980s. The dish features a wide, flat rim for easy handling. Although the bottom mark is not visible, these pieces typically feature an embossed or stamped maker's mark indicating the model number and volumecapacity. Condition appears to be excellent with no visible chips, deep scratches, or significant 'silvering' marks from metal utensils. The white remains crisp, and the blue transfer pattern is intact without fading. Its craftsmanship is indicative of Mid-Century Modern American kitchenware, prized for its utilitarian design and longevity.