Reply to "From what cars did those parts come from?"

I've found them on FIATs, Alfa Romeos and probably every other Italian car of the '70s if your local wrecking yard has a foreign section. The only variations are, some use six cast plastic clips to hold the body to the end, and some use a thin steel cage-like thing. And the embossed numbers on the back for the terminals vary but they all wire up the same- just copy your original. The thread-off front exchanges, the bulb inside fits, etc.