This number 404 yellow Pyrex mixing bowl is the largest in the Primary color bowl set from the 1950s. It measures 10-1-2 inches diameter by 4-3/8" deep and holds four quarts. The bowl is clean and in great condition with even coloring. You have to hold it up to the light to see the few random minor color scratches to the fired-on paint. There are a few shallow stir marks in the very bottom center of the bowl, no chips, flakes, or stains.