If it was refinished, it had to have been done within a couple of years of the guitar's completion judging by the era of the pic. Aside from perhaps a logo switch, I don't see any mods in the Clapton pic to warrant a complete refinish.
Pickguards can hide many mysteries
I wonder if they figured how to remove the dummy coil, but also how deep that 2nd pup selector had to be routed in order to drill at an angle from what I'm assuming is the new HB pup route.