The regulators on my original car were painted black. No sign of cadmium anywhere on the regulators.
A400 Guy
I have some NOS regulators. Who knows, maybe after market, but.... they are raw steel with cosmolene on them. No painting, no cadmium. However, the cup appears that it could have been lightly plated with something but it's a little shiny. I'm sure Ford would not have nickled it.
I don't have any for sale...just answering the question and adding some credibility that they were NOS. One had the original Ford tag when I bought it at Hershey years ago.
BU