Without knowing what type of coins you have, it is impossible to say which service. NGC: Consistent grading, fast turnaround times, good...
1) I've never heard of those two people before. They must have been drinking. :p 2) Put some acetone on a Q-Tip and roll it over the coin....
The corrosion on the reverse is there forever. However, I've had very good luck removing this green crud (looks like Miracle Grow crystals) using...
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