Earlier in the thread, there was a discussion about the various shades of grey (probably not 50...!) on the UP passenger fleet. Here's an example of the color variation -- a drone shot of the Big Boy-led rail excursion from LA to Barstow a couple of weeks ago. I don't know where all these cars are stored nor whether that storage is indoors, but the grey colors obviously show the effects of 'aging'. Anyone who has spot painted their house after a minor repair will discover just how much weatherization occurs in a fairly short time (and then deals with the dilemma of whether to repaint the whole side of the house...).
https://railpictures.net/photo/713905/
Note to Alan -- hopefully linking to pictures on the net is ok... Just out of curiosity (and without trying to hijack this thread), is there a time-limit on copyright protection? I have 70 years stuck in my head (likely to be wrong or mis-remembered...)
