Topic: Outside door handles -- mechanism colors?

[Bossbill]

Outside door handles on 67. I'm having mine rechromed. Correct C7 number.
While it's apart might as well refinish the working mechanism.
The colors I see are:

Button spring: zinc
Screw, pivot mechanism to handle: zinc dichromate (gold)
Pivot part that screws to handle: black dichromate
Pivot part that contacts button: black dichromater
Pivot pin: black dichromate
Pivot pin clip: zinc
Rod clip: cad

Any comments?