Amervo, great pics and comments. Thanks for sharing what you've found. I agree entirely on your comments about "concourse." Absolutely none of them are true representations of what actually came from the factory. And in my mind the definition of "concourse" is simply over-restored, and I am not a fan of that particular hobby at all. I just mentioned it because those are people who tend to explore every square inch of the car and document things relatively carefully, and I therefore assumed such people would at some point find multiple vins in various locations if they existed. Of course you know what assuming always gets ya...

As for the numbers in question, and in your photos. Are these all off of the same car? I presume yes. If yes, do you believe/know these to be partial VINs, which is the primary discussion at hand here for identifying a body? Or do you believe/know they are just stamped part numbers or other identifying numbers that were stamped in...patent or Fisher numbers...put there possibly even prior to the car receiving a VIN from GM?

I ask because there is no apparent consistency. Your cowl shot in the other VIN thread shows what I believe to maybe be 9L109730 (but it's upsidedown and a little blurry so I might have an error in there.) And your shots above seem to show an upside-down "46" and right-side-up "2" in one shot, and a "TA" and a "47" in another shot.

So with every digit seemingly different, I don't see correlation between these with regards to a VIN confirmation, unless there's a decoder somewhere that cross-references.

And as for your secret photos in the post above I haven't the foggiest...can't read it and have no idea where it's taken from. Maybe bottom of a frame rail with an ID plate attached to it, but with no size reference it's hard to tell...heck maybe it's an accident? A piece of random debris or a worker's trinket that got trapped in your car during assembly LOL...

Very curious what that is, though, and looking forward to the answer should you choose to share it!