
[/quote]
They came both ways, many pre-1980s were not painted. Multiple examples of 70's tobacco customs with transparent headstocks below
Here's a 1978 https://reverb.com/item/40221641-gibson ... uitar-1978
And another 78 https://reverb.com/item/36769886-gibson ... honeyburst
And then a 75 that's painted https://reverb.com/item/32124605-gibson ... acco-burst
And a transparent 79 https://reverb.com/item/36651753-1979-g ... _sold=true
and so on and so forth Gibson specs and quality were all over the board during that era - it's entirely possible that even that bridge wonkiness was a f-up by someone who drilled it the wrong way on a friday when they made all the lefty's

Again, bottom line is you'd need to go see it and likely contact Gibson to solve the riddle