These "rolling marks" appear from time to time on different denominations . Here is an example of a dime that has these same marks . Notice that the unstruck portion shows them , so they are definitely there before strike . Hope you can make them out from the picture .
P:s: - this one also demonstrates that the obverse isn't always the lower die .
Nice dime Errorone2012, I can see the lines. But I just read yesterday that the obverse is always the anvil and always has a longer shaft that can not be used as a hammer die unless experimentally machined to do so.
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