RARE Vintage Pyrex/Corning 4 Cup Cobalt Blue Glass Cookware Lid Only Beautiful Cobalt Blue glass vintage Pyrex/Corning cookware 4 cup lid only. In excellent condition no chips or cracks very shiny and glossy. Beautiful bright and vibrant translucent Cobalt blue color Very well taken care of not used much. This lid is for one of the medium to larger Pyrex/Corning cookware/covered sauce pan. This Pyrex/Corning Cobalt blue color is rare,I have never before seen this awesome color. I have seen, amber,clear,amethyst, Cranberry Purple, but never this Cobalt blue color for cookware.Great for people missing the cover or mix & match colors. SEE LAST PIC FOR EXACT MEASUREMENTS ,THANK YOU.