this is a 1960's clever little aftermarket accessory, that were sold in ads in the back pages of Road and Track and SPORTS Car magazines. It is a standard cigar lighter base that has a lamp with a switch on top of it. It has a lighter coil that appears as new that appears to work as normal, except when switch is slid, when you push in the lighter, it turns on a small light bulb instead. useful in a period sportscar, that had no interior dash lamp. I have included a female socket base, unknown condition; but the lighter/lamp assembly appears to have had little use. Please go to my eBay store, then click on the Jaguar Saloon or Daimler Parts section. I have many thousands of original British parts, all marques; 1948-1990, in my Time-warp SEBRING,FLORIDA warehouse, and 14 hundred on my eBay store, Old English Motor Company. Those are organized into 20 categories, including Jaguar Saloon and Daimler parts. .. If you do not see what you want; contact me, I will post photos in the store for you. Please inquire 1 954 JAGUARS , or 1 954 JAGPART. Outside the US, rate is given to MIAMI FLORIDA for thiose who have an agent there. Please give me your address for correct cost .Thank you, James Dean, thejaguru.