[SS Tim]

To keep this simple, base 1970 Chevrolet pickup trucks will have the C/xx fender emblem. When RPO Z62 Custom Comfort and Appearance package is selected the emblem bumps to Custom/xx. When RPO Z84 Custom Sport Truck package is selected the emblem bumps to CST/xx.

The headliner in question is not a stand alone RPO but was in fact offered only (per documentation) as part of the Z84 CST package. It is part of the "special insulation" added by the package as "Roof (headliner)" in addition to the standard between the roof panels insulation.

The only picture I have handy I can document is a 624 GOLD VINYL TRIM Z84 CST