What could be the story

CFD244 said
Re-vinned means taking everything from a wrecked or rotted car (including the fender tag and dash vin) and installing them on another shell. There are stamped numbers on a body shell that are supposed to match the tag and vin....I am not sure where these are on a '69. Mine are on the rad support and under the package tray. This is just one possible explanation.

I would guess this is the most likely scenario. I suppose its not all that scandelous, a green /6 car rebadged into a blue /6 GT.... I will take a look at those places.... although now I'm not sure I want to know. :) Regardless, the green/blue/0.25" of bondo are all going to wind up in my trashcan anyways.