Corningware 1960-1961 Blurry Blue Ink Stamp 1 QT

1960-1961ish - Blurry Blue Ink Stamp Corning Blue Cornflower Buffet Server/Casserole Buffet No number is stamped on back Measures 7" x 7" x 2 1/4 holds 1 quart saucepan/casserole. Gently used; no chips Buffet Server. Very rare, this was from my grandmother's kitchen. Has scratches on inside. Notice pictures for flaws as they are part of the description