69 Camaro inspection marks

[jeremy clark]

I'm a detail nerd, but I know better than to replicate marks unless they were there originally -so I was in for a treat when I cleaned the steering components on a customer's COPO car today. I thought I'd share because I'm sure that there are guys out there that are bigger nerds for this than I am who are taking on the noble task of documenting this stuff. Does anyone maybe have any pics of an original car with the same or similar markings so that I can get a better idea of how they looked originally? mostly the tie rod ends...the rest is pretty obvious....
another thing worth mentioning -the cotter pins for the pitman arm and idler arm to the center link were copper. as far as i know, this was never messed with. It seems like I can remember working on a camaro or chevelle with my dad when i was a kid (maybe 30 years ago) and him mentioning something about having noticed this on other cars but I may be misremembering. anyone got any insight?

Car is an 03D 427/M22 X11 VE3 car with manual steering and is remarkably intact and original despite having had a rough life