Wow, this only gets more and more confounding…
Anybody know what the Body Number on the tag indicates?
I won't discount anything - be it a factory misbuild or a Canadian car. But that said, I brought the car here from southern US. It wasn't a short trip from Canada.
In any case, it is definitely a hard top. There's no B-pillar. Everything other than this body tag (and perhaps the upholstery) is all 1953 Aero-Eagle 685A Hard Top Sedan. VIN is 653-MC1-15###. I believe the exports were all conventional 'post' sedans, correct?
The front cross members have not been relocated.
I am now entirely uncertain of what the interior of my car needs to look like. Was it some weird special order that I need to recreate and preserve? Should I recreate someone's vision for customization from decades ago? Did somebody tamper with the Body Tag, and I should just put it back the way it left the factory?
Well, sounds like you've always had the 6cyl.
I think your best shot is to see if you can match your trim codes to any traces of original paint & upholstry. If they match your body tag codes then I'd be inclined to think your codes were stamped on an export tag that mistakenly went down the line with your car........... just my 2 cents. If it wasn't such a rare tag then I'd be more inclined to consider an intentional swap, but 1 of 47 export tags isn't something the average guy is ever going to run across, and there'd be nothing to gain mounting an obviously mis-matched tag to your car.
I've stripped 3 cars, '52 & '53 and also had occasion to sort through a stack of NOs door panels years ago. None that I've seen had foam backing between the vinyl and door board.
The interior code on my car calls for seat upholstry I've seen on several cars, yet when I peel the aftermarket covers off, the originals underneath are different. Trying to get a match on them now. Maybe you'll find something under the current covers on yours.
Your best hope is if Aeroman can decipher your unlisted codes, I doubt if anyone has more detailed Aero documentation than him.
As for originality, if your codes match the original paint, that's how I'd go but that's just me