mystry pickguard

I went poking around a dusty attic and stumbled onto this. It has a G&L neck heel cut and kind of rough cut pickup holes. Maybe I need more coffee, but I don’t see pickup covers that will fit those holes. And if that control cutaway was for a plate, looks like it would have been a big one. No markings on this pickguard but I may find a drawing that provides a clue.