This is the hard to find rectangular baking dish or lasagna pan in Mikasa's Whole Wheat dinnerware stoneware line, produced from 1976 to 1993. It measures 15-1/4 by 9 3/4 by 2-1/2 inches and is in perfect condition with no wear, stains, or signs of use. Oven, dishwasher, and microwave safe.