These are brand new sheetmetal weld-on housings for Jaguar XK120, XK140, and XK150 sidelamps or parking lamps. They are nicely made and fit well. We also sell the Lucas L513 lamps to fit these elsewhere on this site.
Early XK120 cars used chrome-plated cast housings and L490 sidelamps. We do sell the sidelamps for these cars, but NOT the housings, sorry.
Factory part no. C7284.