Is this a 1967 Barracuda Radio Knob Set?
The 66 Charger center knob is a narrow pointy thing.
Dodge and Plymouth were different. The Dart knobs shown look very much like the knobs in my 67 Charger except the Charger knob centers have a satin finish. Don't have a pic of mine, but here's a pic I got online.
The 66 Charger center knob is a narrow pointy thing.