I have two signatures under the hood of my 54 Belair. They could be nothing, but I was curious if you guys knew.
That's what it is. Guys doing new car get ready "married" the car for the duration of the warranty for any squeeks, rattles, body alignments etc. I did it, so this isn't a guess.
Maybe the end of a production run? last car identifier. Or maybe a quality program, that you put you name on it to reflect that it passed QA