I bought from three other places and they did not fit correctly. These are correct, at least they were the same that came on my 1971 dart. Mine were plastic and not chrome like your picture. Maybe mine were wrong from the get go but I think mine were original as there were quit weathered.
If your looking for a specific color, check his store. He has a bunch to choose from.
Not sure why its listed as charger. As far as I know they all used the same knob. A body usually had colored ones but I think they used the chrome ones in the later years.