This is a so-called "Owl-Eye" lighter, so named for its illuminated golden ring that guides the lighter back into its socket in low-light conditions. These were used on British cars of the late 1960s and 1970s, including MGB, MG Midget, Triumph TR6, Spitfire, Jaguar E-type Series II and III, Mini, and many others.
This one is in fair condition, with a good socket, knob and amber bezel. The light is complete and clean. The insert is rusty but it might work anyhow. We haven't tested it.
We have lots and lots of parts for British cars, so please give us a try if you need anything. We sell Moss Motors parts and at a discount and we keep popular replacement parts on the shelf for MGs, Triumphs, Austin-Healeys and Jaguars.