I sent an email to VA Classic Mustang complimenting them on their selection of early parts and their catalog. Here's part of the response:
"In fact, the car that has been around here the longest is an
August 1964 production High Performance Convertible. We also have a
fastback with that early carpet and vinyl. Expect to see our new print catalog by the end of the year."
I wonder if that 'vert is in the registry...