A complete set of four Cinderella mixing bowls in the "Spring Blossom Green" (aka Crazy Daisy) pattern from Pyrex. The bowls are alternating green and white decorated in a central band of daisies. The bowls measure 5 3/4", 7 1/2", 8 1/2" and 10 1/2" not counting the handles. The bottom of each bowl is impressed with "442 (size) Made Mark 21 Pyrex Made in USA Oven Ware." The condition of the set is clean and pristine, with absolutely no evidence of use.
From Wikipedia: Pyrex was created in 1915 when chemists at Corning Glass Works invented a new kind of borosilicate glass that could withstand extreme temperature fluctuations. Soon after, popular over-to-table-to-refrigerator household kitchenware was introduced. The continued popularity of Pyrex over the years saw the creation of nested and Cinderella mixing bowls, casseroles, divided servers, refrigerator sets, carafes, and dinnerware (to name a few) in bright colors and lively patterns.