The bottoms of the bowls are unmarked. I found this set at a local estate sale of a couple who had lived in the same house since the 1950's. They are the only owners of this bowl set. It appears to have never been used. Was it fragile breakable items?All my boxes are brand new, my packing material is high quality. If you have any questions, please feel free to ask.
Large bowl (403) is 8 1/2" in diameter x 4" tall. Small bowl (401) is 5 1/2" in diameter x 3 1/4" tall. The item "RARE Vintage PYREX ATOMIC EYES Chip And Dip Bowl Set MINT MID CENTURY MODERN" is in sale since Wednesday, December 18, 2019.This item is in the category "Pottery & Glass\Glass\Glassware\Pyrex". The seller is "westmiemp" and is located in Muskegon, Michigan. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, South africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Chile, Colombia, Costa rica, Panama, Trinidad and tobago, Guatemala, Honduras, Jamaica, Barbados, Bangladesh, Bermuda, Brunei darussalam, Bolivia, Egypt, French guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Cayman islands, Liechtenstein, Sri lanka, Luxembourg, Monaco, Macao, Martinique, Maldives, Nicaragua, Oman, Pakistan, Paraguay, Reunion, Uruguay.