I don't know, I've had a few drinks in my day that made me feel like I was going to die.
Could the lighting factor into your perceptions about luster? At home I don't have the same lighting as there is at coin shows with coins under...
I've found that the coins that I have in slabs don't seem to be misplaced but the raw ones do. I guess out of sight, out of mind, or lack thereof.
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