Where did you find the Verdoro color? Did you only find it somewhere in the vicinity of the firewall? Can it be seen under the blue in multiple spots around the car?

The odd thing is the Verdoro trim tag is three months after the PHS record which has the top blue paint.

If the Verdoro you found is near the firewall, the question might be, could an event that damaged the firewall and adjacent painted parts justify the amount of body work to replace them? Did the body shop find a donor Verdoro '68 to repair your aunt's blue car? The car would really have to have been new to not be totaled. It's a wild hypothesis and if Verdoro is found in distant parts, can be rejected.

If the trans is original, there is a VIN also on it and I've heard there is another near the heater box.