10/27/2026
An 1880-O Morgan Silver Dollar with a rare micro O mint mark turns up in AU (About Uncirculated) condition - and the detail is sharp enough that even the tiny mint mark is clearly struck.
This micro O variety is a known rarity among 1880-O Morgan Dollars, and that kind of mint mark typically pushes a coin's value toward the $100 range on its own. This particular piece, graded AU with strong luster and detail, was picked up for just $53 - a notable gap between typical value and purchase price for this variety.
If you collect Morgan Dollars or are learning to spot VAM varieties and mint marks, this is a quick real-world look at how a small detail like a micro O can change a coin's desirability.
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