VINTAGE Pyrex Reverse Primary Mixing Bowl Set. Made in USA.

This set of Pyrex mixing bowls is also called "New Multicolor Bowls" and was made between 1968 and 1977. There are in pretty good vintage shape, with the largest avocado bowl showing some dishwasher distress, and the yellow bowl having some obvious marks on the exterior. Please see photos as I've tried to show the worst side on the individual pictures. I am positive that the 2 largest bowls are the correct colors for the reverse primary set... the avocado green is obvious, and the yellow is much more "buttery" than the yellow in the primary set. The next 2 bowls I'm not as sure of... I think the blue is right, but the red may be a red from a primary set... I believe the reverse primary red should be more orangey, but TBH I've never seen one, so I'm selling the set this way.
If there are any Pyrex collectors out there who want to set me straight, I'm a big boy... let me have it!
Meanwhile.... it ships free in the US, and I've gotten really good at packing these!