[sYc]

The markings were stamped on the car before anything had been bolted on. Here is how it went. Fisher body assembled the "body", firewall back, even painting it. Once finished, the body had to pass through an opening that seperated Chevrolet from Fisher Body, two companies, housed side by side. Before Chevrolet would accept the body, it had to be inspected, thus, the stampings. There were three parts to Fisher Body, "body, paint, trim", thus p-b-t markings. Not all Chevy plants did this, but Norwood did. To save time, two inspectors, one on each side of the car, thus markings on both sides of firewall. Tom