Vintage Pyrex Primary retail Nesting Mixing Bowls Set of 4

Product Name: Vintage Pyrex Primary retail Nesting Mixing Bowls Set of 4
Set of 4 Vintage Pyrex Primary Nesting Bowls Includes: retail Yellow 404 Bright Green 403 Poppy Red 402 Blue 401 Displays Beautifully! In excellent vintage condition. No chips or cracks. Any noticeable marks are pictured. Proclaimed as the “World's most famous mixing bowl set,” the Primary Colors set was the first of the Pyrex items produced on white opal ware with colored overlay. The set included four mixing bowls, which came in yellow, green, red and blue. As the earliest set released by Pyrex opal ware the new “Color Bowl Set” did not have standard model numbers such as 401, 402, 403 and 404 as we have come to know them today, but they are standard bowl sizes. They were redesigned in the 1950s to include numbers and sizes on the bottom of each bowl.