I have my Mom's set of Pyrex mixing bowls from when she got married in 1948. All are there--I only handwash and never use in oven or microwave--don't want to scratch that paint! I also have an almost full set of the rectangle Pyrex casseroles with the clear glass tops that were my Mom's too--I remember she made yellow in the larger yellow one. A friend that sells antiques says both sets are collectible and sell for a higher price than they did originally!