This is Corning Ware's one quart saucepan (aka casserole) with the usual 2-tab handles. It is Corning's Model P-1-B. It is 7 inches square, 8 7/8ths inches handle to handle, and 2 1/4 inches tall. It bears the cornflower decal on opposite sides. It is marked on the base: "Corning Ware, P-1-B, 1 QT, Made in U.S.A." The backstamp includes the stylized flame mark as well as the decal pattern (which is not on all P-series pans). This backstamp was used 1966-1969. This pan is in excellent vintage condition, bright white inside and out, showing little to no signs of use.