This bulb has a number of applications:1. It is the reverse and number plate light bulb on the R Type2. It is the front indicator bulb on the S3 and Silver Shadow models3. It is the rear indicator...

This is the center lamp fog nut. 1945-1955 Silver Wraith, Mk-6, R-type, Silver Dawn Models

This is the Fog Lamp Extension 1945-1955 Silver Wraith, Mk-6, R-type, Sliver Dawn    

This is the clear glass, single filament fog light bulb, 12V / 48W bulb. 1945-1955 Silver Wraith, Mk-6, R-type, Silver Dawn

This is a Chrome Pedestal Center Lamp for the Lens and the Light.  The picture shows only a partial view of the Chrome because it has a protective wrap placed by the factory. 1945-1955 Silver...