Hmmm...I don't mind the discoloration.....but two different discoloring orbitals? Not so sure. As kronin323 notes, a refinish could fix it if you were so inclined
yep natural discoloration. could have been in a display case and one side (the discolored one) got more light or heat either sun or case lighting.. i would leave it as-is.
I had a set do exactly that, only one orbital changed , looked golden brown like that in fact it was the same orbital Sent them to x man for refinish They look like new again
You can polish out the darker orbital with scotchbrite and dishsoap.wearing a pair of frames that has different colored orbitals is lame,you aint gonna devalue them by matching the color.