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Golly, those sure do look similar! TJhoward's look to be punched, and if he has MY luck, they're punched from unobtanium! I wonder if those manifold washers are the same size (or "close enough for government work". The manifold washers are often available on ebay, but if he's wanting "correct" pieces, for a points correct show car - - well sir, good luck!
BC