First thing. The plating finishes varied. What I'm listing is what I've seen the most often.

Retention clips = Black phosphate
End link arms = Gold (usually silver with a lighter gold wash over the silver)
Center carb swivel and threaded link arm receivers = Gold
Center swivel "Axle" = Silver
Washers on center swivel = Silver
Cotter pin retaining swivel to throttle arm = Silver
Hairpin clip = Black phosphate
Idle stop solenoid adjuster screw = Silver
Idle stop adjuster screw retention clip = Black phosphate