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 Replies: 24 / Views: 4,396 |
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Valued Member
Australia
251 Posts |
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Formerly nancyc
Australia
5385 Posts |
Hmmm...I don't know what to say. I can't tell if it's an error or not. The rim appears to have had a nasty knock at some stage, but that's probably unrelated to the coin having a line in the middle of the reeding.
Is the line in the reeding more like a groove or a ridge?
Hopefully some more experienced people might offer an opinion, so we can both learn.
life is a mystery to be lived not a problem to be solved
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Bedrock of the Community
United States
10045 Posts |
That's interesting....is it the same diameter as a normal 20c?  |
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Valued Member
Australia
216 Posts |
interesting, notice how the diameter is slightly smaller. (could just be my eyes though) Where I used to work, a meatworks, we had big industrial clothes driers for the uniforms. You should have seen the coins that come out after rattling around in them all day. We found dollar coins where the rim had melted almost and shrunk in size to that of a $2. The coin in the middle was still the same thickness though. Think H beam. Serious PMD. I wish now that I kept a few of them. Maybe something similar happened to this coin to a lesser degree. |
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Valued Member
 Australia
251 Posts |
Hi Nancy its a little ridge, the coin is thicker than the others but the same diameter.
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Bedrock of the Community
United States
10045 Posts |
Another thing to try is to weigh this coin against a "normal" coin.
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Valued Member
Australia
251 Posts |
i just looked at it again is about 1/2 mm smaller than a normal 20c and 1/2 mm thicker, I don't have scales so I'm trying to think if there is somewhere I could I weigh
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Valued Member
Australia
64 Posts |
looks like it has had pressure put on the rim forcing this to thicken and the diameter to reduce. it also looks like whatever did this rolled it round then spat it out leaving the deeper indentation. I am trying to think what could do this. does the ridge around the edge of the coin feel sharper or higher than a normal coin. definitely PMD though IMO |
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Valued Member
Australia
251 Posts |
Hi ECS I just felt it very different to feel there is more of a lip at least twice as much if not more. I'm about to click the PMD on your reply thankyou :) |
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Valued Member
Australia
251 Posts |
Oki I think I get it. It was done after it left the mint, but it dose not matter because its IMO like the 1972 5c coin...?
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Bedrock of the Community
Australia
21788 Posts |
That's what happens when you roll them under great radial pressure. Try it yourself with a common coin, and you will see that the metal has to go somewhere! Same sort of thing thing happens with Dryer Coins. |
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Valued Member
Australia
251 Posts |
Nancyc... Hello Nancy =D I hope you can hear me :) I took DVCollector's advice and weighed it "i finally borrowed some scales", it came up as 1.5g and I weighed it against other 20c they came up as 1.3g I did it over and over with different 20c coins encase scales were faulty and it came up the same every time. Should I start to get excited?
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Pillar of the Community
Australia
4411 Posts |
20c coins should weigh 11.3 grams so your scales are wayyyyyyy off. Incase you meant to type 11.5 and 11.3 grams then 0.2 grams really isn't much of a difference. Coins are often slightly overweight and yours has some extra crud on it which would add even more weight. I actually dont know why it was suggested to weigh this coin. I dont know what that would be evidence of in this situation Edited by enworb
12/11/2012 03:34 am
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Valued Member
Australia
251 Posts |
ops sorry I meant 11.5 and 11.3 :0 I ended up taking of the bit of stuff of it before I weighed it turned out to be blue-tack so I just scratched it of and washed it with soap water :)
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Valued Member
Australia
251 Posts |
javascript:insertsmilie('  ') Edited by Candace
12/31/2012 07:05 am
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Valued Member
Australia
251 Posts |
whip that last thing I said coins sold $140 I reckon it went alright after all =D
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Replies: 24 / Views: 4,396 |
Posted 12/06/2012 12:09 am
