From Corning, this is a set of 3 vintage Pyrex glass measuring cups with red lettering and an open handle design. I believe they were made in the 1970s, but it could have been the 1980s. The larget, numbered 532, measures 4" deep and 6" in diameter at the top. It holds 4 cups, 32 oz, 1 quart or 1 liter. The second largest, numbered 516, measures 4.5" deep and 4.5" in diameter at the top. It holds 2 cups, 16 oz, 1 pint or 500 ml. The smallest one, numbered 508, measures 3.5" deep and 4.25" in diameter at the top. It holds 1 cup, 8 oz or 250 ml. These are in excellent condition with no chips or cracks, and all of the graphics are intact.