| Those look fine to me, the pole pieces can be removed and cleaned off if you want but I'd just leave them because they'll just rust up again unless you have them re-chromed. It's very normal for them to look like that, they were made 30 years ago!
The rust shouldn't affect tone at all, but you'll want to line the screwdriver slots up the same way, if the slot is parallel to the string it can supposedly sound different than if you have it perpendicular. |