Well the lighting is different between the pictures, I can tell this from the U in Pluribus. in fact you can see the lighting is different pretty easily. so of course it's going to reflect differently off the two in different ways. the light is brighter and on a different angle on the S.
other than this lighting issue, I see maybe some Machine Doubling
on the S mint. but it's proof, reverse proof in fact, and it might be the light playing off the polished devices also.
So, Nahhh, I can't go further with this lighting and color manipulation of the photos, If this were an ebay listing I'd be taking a hard pass off these pics alone.
I spot the difference, I can guess what caused it, My guess is your camera technique. LOL maybe a bit of photoshop hidden in there also.
Edited by Big-Kingdom
06/04/2021 12:04 pm