"Tin cover, possibly for a mag?"
This is the rear cover for the SM5 switch panel. Is your car definitely an RP? These would have been fitted to early RN's. Very rare, you'll find out why they were thrown away if you try and use it!
This is the rear cover for the SM5 switch panel. Is your car definitely an RP? These would have been fitted to early RN's. Very rare, you'll find out why they were thrown away if you try and use it!