Corning Ware Blue Cornflower Saucemaker 1 Qt 4 Cup Vintage No Lid. Vintage CorningWare sauce maker featuring the iconic Blue Cornflower pattern. Blue Cornflower Pattern: This pattern, introduced in 1958, is one of the most recognizable and popular designs associated with CorningWare. Material: Vintage CorningWare, like the item shown, is made of glass-ceramic, known for its durability and versatility. Usage: These pieces can be used in various cooking methods, including conventional and microwave ovens, on a rangetop, and under a broiler. Collectibility: Vintage CorningWare, especially rare patterns, can be highly sought after by collectors. Nice vintage condition. No signs of chipping or cracks. Fun piece to add to your collection! All glassware is double boxed for safe shipping.