![Pyrex #400 Multicolored Mixing Bowls. These came out in 1957. I have this very set that I inherited from my late Grandmother. They still are used quite often. : r/vintageads Pyrex #400 Multicolored Mixing Bowls. These came out in 1957. I have this very set that I inherited from my late Grandmother. They still are used quite often. : r/vintageads](https://i.redd.it/pbrmm5v87bo71.jpg)
Pyrex #400 Multicolored Mixing Bowls. These came out in 1957. I have this very set that I inherited from my late Grandmother. They still are used quite often. : r/vintageads
![Amazon.com: VINTAGE 1940'S PYREX PRIMARY COLORS MIXING BOWL SET - Blue 1 1/2 Pint, Red 1 1/2 Quart, Green 2 1/2 Quart & Yellow 4 Quart - SET OF 4: Home & Kitchen Amazon.com: VINTAGE 1940'S PYREX PRIMARY COLORS MIXING BOWL SET - Blue 1 1/2 Pint, Red 1 1/2 Quart, Green 2 1/2 Quart & Yellow 4 Quart - SET OF 4: Home & Kitchen](https://m.media-amazon.com/images/I/81h13rWdKlL.jpg)
Amazon.com: VINTAGE 1940'S PYREX PRIMARY COLORS MIXING BOWL SET - Blue 1 1/2 Pint, Red 1 1/2 Quart, Green 2 1/2 Quart & Yellow 4 Quart - SET OF 4: Home & Kitchen
![Pyrex set up for nesting mixing bowls primary colors clear bottom 322, 323, 325,326 - Wildwood Antique Malls Pyrex set up for nesting mixing bowls primary colors clear bottom 322, 323, 325,326 - Wildwood Antique Malls](https://wildwoodantiquemalls.com/wp-content/uploads/2021/03/1537377643695EMS903YFC8Z94UU2PD1X.jpg)