Rob & Tom, Moss Motors part #462-720 is simular to what you are describing It is for the Rostyle wheel used on the MG-B .I think these are the ones I have on my car. They are made out of metal and are silver with black letters and have a slightly raised center.I used them on the horn button as well as the hubcap spinners.I picked mine up at a british car show .Moss price list shows them at $1.55 each.
