I think that is a late 90's Budnik Stiletto 7 wheel. They used that center cap on quite a few of their Original and Tecnik series wheels. I have their Trilogy 3 wheels on my S10. They are of the same era as yours. I had to get a center cap for one of mine 6 or 7 years ago. I contacted them with what I had and what I needed. I don't recall what the price was but they got it to me in a week or so.