69 M-code question

I don’t think so either but most of the pictures that I have found of “restored” engines have painted valve covers with a chrome breather. I’m painting my engine today, not that I’m a stickler but I want it to look right. I have a nice black breather but thought I should look for a chrome one.
After looking at a magazine article I believe you are correct about the chrome breather cap being original. Good luck
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