Z Restoration Progam

1 hour ago, HS30-H said:

But we are only looking at the S30-series Z range here, so - as far as I am aware from looking at period documentation - no Cadmium was used when 'our' cars were made.

I was looking for a before and after within Nissan Motor company or the Japanese auto industry as a whole. If Nissan never used cadmium then it seems illogical that they would start in 1969. The S30 is just another car of course. The same fasteners were certainly used across the model range. If they used cadmium in 1965 on a different model, you'd expect them to keep using it on the S30 unless they had a reason to change. When was the shift?

And, on your final point there - still no evidence that supports your statement, besides a Nissan document that identifies an alternative plating material. If you had a document that showed cadmium from earlier years next to your document that shows zinc, that would have some weight. Evidence that Nissan removed the word cadmium from their documents would be telling.

So far, there have been many many words written on sparse evidence. 1970 was so long ago. All of that paper and ink. How did they get anything done?