Dash knobs 70 Duster

Trying to figure out if my car has the correct dash control knobs. If so, the Headlight and Cig lighter are different than the wiper. I find it hard to believe they don't match from factory.
But, anyway, the headlight and lighter knobs are chrome look, and the wiper knob is concave and has some sort of dull coating. This could not be correct, right?

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