20c Error Coin - Coin Community Forum

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Author	Replies: 8 / Views: 2,006
Australian coin Pillar of the Community Australia 1244 Posts	Posted 05/21/2011 01:59 am Is this real? An oddity you don't normally see. http://cgi.ebay.com/ws/eBayISAPI.dl...TRK:MEWAX:IT Report this Post to the Staff

Nevol Formerly nancyc Australia 5385 Posts	Posted 05/21/2011 02:30 am Looks like it's had something spilt on it. For me, it's only worth 20¢. life is a mystery to be lived not a problem to be solved Report this Post to the Staff
Australian coin Pillar of the Community Australia 1244 Posts	Posted 05/21/2011 03:05 am Yeah I wouldn't bid on it either, but I have no clue about the Not Mixed Properly thing. Does this exist in Australian coins, having planchets with extra of one metal in it? Is there anywhere where I could learn more about this? Report this Post to the Staff
biggfredd Rest in Peace United States 9104 Posts	Posted 05/21/2011 03:37 am I'd say it's just stained, PMD. Report this Post to the Staff
rachums107 Pillar of the Community United States 3345 Posts	Posted 05/21/2011 10:27 am Looks like BBQ sauce to me. Report this Post to the Staff
wesley Valued Member 195 Posts	Posted 05/21/2011 10:49 am Soneone bought it,they could have made a smarter-choice Report this Post to the Staff
zic Valued Member Australia 121 Posts	Posted 05/21/2011 11:07 am Seller got his gain with 4$ regular shipping, I guess that was his target. Report this Post to the Staff
Craig Valued Member Australia 112 Posts	Posted 05/21/2011 9:16 pm It would be different if the "stain" went through to the other side, then it would indicate two metals in the die... as it is, looks like the crap you can out on metal to give it the stained/old look. Report this Post to the Staff
sel_69l Bedrock of the Community Australia 21788 Posts	Posted 05/21/2011 11:53 pm That " not mixed properly thing" may be a bit of a goer. On the redox table, nickel is more reactive than copper, but like aluminium, it instantly forms a highly passive and very thin protective oxide coating, if the metal is exposed. That is why it is possible to use aluminium in aircraft. As a copper nickel alloy, the nickel may not be preferentially attacked, leaving copper behind. This lends credence to the quote mentioned above. Report this Post to the Staff
	Replies: 8 / Views: 2,006

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