I found this large heavy British hubcap, painted cast iron with a nickel plated brass center emblem: "THE STAR ENGINEERING CO. LTD. WOLVERHAMPTON". The cap is 8 5/8" diameter and 3 1/2" high with five 7/16" holes. Have also seen a photo of a similar enamel radiator emblem labeled "THE STAR MOTOR Co Ltd". I would like to know about the company's history, age of the cap and what it was used on, car or truck. TIA for any help.