This is the see-saw chrome plated switch that operated the roof light and the trunk light.  This is a good USED tested part. 1946-1955  Silver Wraith, Mk-6, R-type, Sliver...

This is a new chrome sun visor clip. This is rare to find this part new and not used or a reproduction. 1945-1955 Silver Wraith, Mk-6, R-type, Sliver Dawn 1955-1965 Silver Cloud & S-series