diehard my apologies , I went and got my old color chip book out of my tool box , and guess what ?
I found a Lucerne Blue Poly on a 1970 Pontiac.It was used on 70-72 pontiacs.
Color code is 26, and the PPG # is 2213.
You might call your PPG jobber and see if they can call the color library and see if it can be cross referenced into a Base Coat /Clear Coat if thats what product you would like .