Balboa coins are cool! I have been on a ship going through the Panama canal (as a tourist when I was 10).
About copper grade only being good for 10 years, that is for the color only. The one you are interested in is already graded brown (BN), so it...
This field looks like could be from the Littleton packaging. Cant tell for sure from the photos but it doesn't take much [ATTACH]
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