This 20c coin stuck out like the proverbial today when I emptied a vending machine.
The coin is ultra clean, the lettering is tack sharp, yet the coin appears as though it has scratches across both sides but if they were scratches it would've effected the lettering??
The coin looks like it may have been "cleaned" using maybe a high speed polisher like those desk mounted grinding stones??
(http://i141.photobucket.com/albums/r53/patchy001/20c001.jpg) (http://s141.photobucket.com/user/patchy001/media/20c001.jpg.html)
(http://i141.photobucket.com/albums/r53/patchy001/20cback001.jpg) (http://s141.photobucket.com/user/patchy001/media/20cback001.jpg.html)
There's been a few coins that look like this posted before and I think the consensus was an acid bath.
Quote from: 'Mister T' pid='24922' dateline='1376474350'the consensus was an acid bath.
I'm starting to doubt that story. I've been keeping the $2 examples I've come across, and the stack is large enough to suggest something else is going on. No idea what, and it may or may not be PMD, but I'd like to find an answer.
Quote from: 'Mister T' pid='24922' dateline='1376474350'There's been a few coins that look like this posted before and I think the consensus was an acid bath.
That was my thinking as well. :angel:
I too have noticed the high amount of coins that are just trashed eg (http://i44.tinypic.com/egpmhz.jpg) and the really dark one is 2010 so they aren't all old coins either
(http://i42.tinypic.com/1235dvp.jpg)
With my experience e in detecting coins, most of the brown coloured coins above have come from being submerged in fresh water for a time.
Acid dipped.
Interesting topic
The brown 20c and 10c I have seen before they are grubby looking and no place in any collection
Hi coin change 20 cent 2008 coin and not any clue whats caused the ripples over the surface. We can see marks obvious post mint other coin damage but notice [attachment=2274]much rippling is below the raised areas.
Any ideas appreciated. Regards ErikP
its all pmd
[attachment=2275]Hi, same 2008 20cent with image closer onto the 20. Regards ErikP
[attachment=2276]Hi, other side doesn't have the same see image. Regards ErikP
Almost certainly Deliberate PMD. Someone's been having fun with it.
Pity. The Obverse looks like it might have a planchet flaw, and if so, they ruined it.