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Message:: [QUOTE="GDJMSP, post: 57534, member: 112"]Scans of coins are good for some things and bad for others. Typically, scans will wash out all luster unless you tilt the coin. But scans tend to show any and all marks that may not show up in digital pics. And while scans do not show luster - they do show breaks in luster. Now, that being said, I cannot say whether the coin has been dipped or not based on the pics. You comment that there is considerable luster under the toning on the reverse. That would indicate the coin may not have been dipped. But if there is no luster under the toning on the obverse - that would indicate that the coin probably has been dipped. You have the coin in hand - so only you can tell. As to the grade - I do not think the coin has been circulated due to lack of marks. And based on the pics the obverse is a uniform color which usually indicates no breaks in luster. But the reverse - the eagles breast shows plenty of dark grey on the high points and what appears to be rub marks in the fields. These are breaks in luster - but there's several ways that can happen. And in this case, if I had to guess, I'd say this coin was likely stored in a coin cabinet for a long period of time - reverse down. So technically the coin is uncirculated. But being a '79-S, it would never make MS65 without very good luster. And based on what you are telling us it does not have it.[/QUOTE]