1965 Dodge Dart Charger

On the shifter console on 1965 Dart, Valiant and Barracuda there is a black plastic shifter slide insert. On my convertible the black plastic is just black with no pattern.

I bought a repop slide insert from REM and it is in good condition but I has a pattern! Should there be a pattern on them? I've never seen that Before. No pattern at all on my convertible. Or did the pattern disappeare over the years?

Any help is gladly appriciated.