You may want to double check your chemistry regarding the effects of acetone on metals
Zinc rot. It may have started as a plating blister, but more likely the plating split at the edge of the MM when struck, which is common on the...
It is definitely not an SMS unless somebody bought it at an auction in the last 20 years, cracked it out of the TPG slab, and spent it. Google...
Short answer is no. There are many, many, many ways for a coin to pick up toning from the environment and many coins that were plated after the...
Looking forward to reading your future explanations of how the minting process is responsible for coins that look like PMD to so many CT members.
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