I wasn't sure how credible the Fuel car claim is, but then I found this interesting letter issued by GM referencing this car as a candidate for some fuel injection repairs:
Link to GM FI Service Bulletin
Anyway, it's not exactly a protectoplate but pretty cool documentation nonetheless. I wish the paint was a little better preserved...but there aren't many of these cars left with period paint....
Link to 1963 Corvette Convertible auction
30867S109348