I don't know how I missed this thread, and I don't know how much more information is needed. I looked at the gas cap from my 69 that came with it when I bought the car in the summer of 1979 and the cap still has gray primer sprayed on it by a previous owner. Car is an 02D built in NOR, has ears, SM stamp on one of the ears, black rubber gasket, has the 3 indention's on the back side, finger tabs are located closer to the "ANTI SURGE" lettering than "VEN TED", which appears to be more uncommon. Maybe I can eBay it for $500 because it is the more rare 2nd version or something like that. LOL. Cap looks to be in good non corroded but dirty and painted shape so my guess is it will stay on the car if and when I ever get it finished.
Loren