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Hard to believe how much gunk someone layered over this coin! [IMG] [IMG]
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Dunno, appears to have been pressed into an album. It has neon green (my fav toning), hard to capture with my setup.
I don't know the value of the coins you have but I don't recommend that. Once you cross the conservation line there's no turning back.
The technology in VC allows it to remove both polar (water soluble) and non-polar (organic soluble) residues.
Honestly, this the first time I've seen anything quite like this. Likely shoe polish, mostly water insoluble dyes in wax. Isopropanol is a good...
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