Correct me if I'm wrong, but all 697 T/A's built in 69 were only offered with an exterior color of Cameo white with Tyrol blue stripes. There were numerous interior combos, however.
There was one Palladium Silver car, but it was a pre-production prototype used for press functions. It had no stripes, that I'm aware of.
I'm not aware of these others. Quite possible given the secretive nature of operations at the GM divisions in those days. They would have a pre-production VIN, I assume. Maybe they avoided the crusher somehow.