aye. having done paint and build-ups for clients through monsters in motion more than 20 years ago, i'm well aquainted with what weathering is heh(and had a probably fair eye for color and greyscales at the time, i reckon). thus, my intense interest in going to magic of myth to get to the bottom of it all.
40 year old pics that have been more than likely "corrected", brightened, enhanced, rephotographed, shared over and over, however accurate the color to be believed to be true at the initial photograph, recycled, spit out, recycled again. stored on a server for who knows how long, sent over the internet and displayed on a monitor of myriad calibrations will not change my mind on the matter lol. there's also that factor of humans differing perceptions as well.