The mystery goes on. After talking to several restorers I was told that there are different people stamping parts. Dynacorn, Goodmark, Golden Star, AMD, and someone here in the good old USA. I got the impression that they all do not stamp the same parts so you could get a part from one supplier that he doesn't make but gets is from his competition just to keep the order for you. I just wish I knew the names of the companies that stamp the same part to get a comparison. But in the end it will probably be like Orbit said, just get the part and go to work.