'64 Build Sheet carbon sheet or ??

[Verne_Frantz]

Paul,
I've never found a "carbon". I don't think any found their way into a car. The various assembly stations around the line received their own "original" on a teletype machine. Some of those originals were attached to subassemblies that made it into the car, like seats, side upolstery, instrument clusters, etc. When (if) a sheet was dropped where it wouldn't be seen when the car was assembled, it just got left there. The body of the car was a rolling trash can for the guys on the line. I think it's an original that's just succumbed to the tar paper and carpet backing, with a little dampness thrown in.
I can't tell you how many original buildsheets I've found in a car with a VIN sequence for the previous car or next car on the line.

Verne