[dean from bozeman]

Werner, that is an interesting dilemma.

Stores like Home Depot have a machine that will analyze a sample and come up with a matching paint. Would it be possible to obtain locally an original Model A part that has some green paint on it and have its color analyzed and have them make up some paint for you? This is just an idea that came to me. I would imagine that you would have similar technology in Germany.

I imagine that it would be easier and more accurate to obtain a number code for a particular mixture. If neither of them are available, I would follow Nick C's idea.