This one has a lot of die crack but not sure of the discoloration. Any ideas on this? There also may be some evidence of a die clash.
It's all raised and won't come off. Soaked in Vinegar and salt mixture for a few minutes then rinsed thoroughly..
Your coin was coated with something (paint?). The raised areas are in the coating, not coin. Notice how none of the "cracks" are in the uncoated area. Just environmental damage. BTW: Nice pics. Makes it easy to understand what you're asking and to provide an explanation
I also think it's in the 'coating'. You can also try acetone, which works great if it is paint. Soak it for a few minutes and you can also use acetone and a q-tip to GENTLY rub the areas.
