I am still going back and forth about repainting...but thought this proof mark under the hood might be of interest to you all...I was told that it was a " sign off" mark from the person at the paint line in the factory...back in the days when human beings actually had a part in the big picture...
my truck is supposedly a california made early model '67 CST C-20...this truck spent its life in the Colorado high country...now in the shenandoah...
one more reason that I have always loved owning old steel...this is my 4th old chevy...all the best...ted