QUOTE(LostDutchman @ May 8 2006, 09:24 PM)
and from the scans provided these appear to be slider AU's I would also be willing to bet they have been cleaned
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i've got to agree on these, I have a "nice bright" 45 half like that one, but it was dipped a while ago, the coin have some slight wear, that's about the easiest way I could tell. As for the best way to find out, buy a cheap usb microscope and take some close up hair-line shots. Dipping is a little harder to see though, I'm no expert on figuring that out.