Correct switch says Delco-Remy on the side if it does not say anything it is usually the Cole-Hersee version. ARK LES made a lot of switches, however it is not the correct switch, but no one would probably know.
You can see the Delco lettering on this example.
https://www.flickr.com/photos/advance-design_parts_co/8129327386/in/set-72157631868452754