69 Dart Custom door trivia

Hello experts,
I'm reassembling trim and interior odds and ends and have run into question. On the interior door sil, there is a rectangle Dart Custom plaque. Just above that is a small hole. For 200 points and the win....what goes in that hole?
Can't find a clear pic anywhere. Maybe a Chrysler logo? View attachment 1715642288
It is for a plastic plug in the hole, for an Allen head screw that goes in the vent window assembly.