Z Paint code

I have a 1967 ZZ1 Gold Poly paint code that I am trying to get a recipe that a paint store can use. They say they don't have it in their book. From what little I know about paint, I believe there are a couple of standards that provide colors/amounts that are used to create a color.
This is all I have

Color Code and/or Color Name: Gold Poly paint code ZZ-1
Color Codes - Ditzler PPG 22715 Cross-Reference

Anyone have access to this? and can share the Gold Poly recipe?