Thanks for your response and info. Trim tag is 1819. Montreax blue with a blue convertible top. I have the receipt for the top replacement in 1973 as well as the warranty card from Keetop top with the stock # of the top. I emailed Keetop to see if They can provide info on what tops were available from factory and the color of that top new. I’m in touch with the brother of the original owner, he had the car given to him in 1978 by his sister, the original owner, and owned it until 2010. Unfortunately his sister passed in 2015. He is looking for pictures of the car when his sister owned it. I kind of think that she chose a non stock color. I can’t imagine Pontiac offering a top that color, but maybe.