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Replies: 22 / Views: 4,962 |
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Pillar of the Community
Australia
7096 Posts |
Both of the dents are rounded and not sharp, looks like a grinder accident to me. If they were clips they would be uniform and sharp 
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Valued Member
Australia
465 Posts |
 Happy noddling!
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Valued Member
Australia
465 Posts |
Okay, lets all take a step back and look at this. It could be a clip. It could be a hammer / PMD. I will have look / guess after my tea. Surprised Nicwinner has not commented yet
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Pillar of the Community
Australia
869 Posts |
Odd & no comment. I'm a polymer person.
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New Member
 Australia
11 Posts |
dibby33, please let me know your final judgement. if clipped then it will give me a big amount of energy to noodling this week :). if not, then I stick to trout1105....just ordinary PMD, and take a break from noodling for a while.
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Pillar of the Community
Australia
4411 Posts |
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Pillar of the Community
Australia
507 Posts |
Regardless of whether it's a clip or PMD, don't let that take away your enthusiasm for noodling - there's plenty of worthwhile finds out there in 50Cland, not the least being an incuse millennium.
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Valued Member
Australia
124 Posts |
Hi coinnoodling and  to CCF. Don't be disheartened if this coin turns out to be PMD, there are plenty of other error coins floating around in the pond. Measure the angle of the clip and if it's 30 degrees then it could be a clipped planchet. If it's not exactly 30 degrees then its probably PMD. You will have to photograph the coin from vertically above each clip to do this and then measure the angle. I note that from the pics provided it appears that there isn't a rough uneven point where the clip angles meet nor any tell tale groves in the clips which indicates to me that it isn't PMD.
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Pillar of the Community
Australia
1607 Posts |
From the pics put up so far it is a 50/50 thing,some make it look OK & some make it look like carp.
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New Member
 Australia
11 Posts |
Hi, g'day thanks all for your comments & support. whether it is PMD or clipped, I decided to keep it. it will be part of my 50c error coin. now is time for another noodling adventure, never give up hope :).
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Formerly nancyc
Australia
5385 Posts |
life is a mystery to be lived not a problem to be solved
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Pillar of the Community
Australia
1295 Posts |
I'd say the original coin and the one in the ebay auction Nancy linked to are probably real clips but you'd need to see them in hand. 50c clips don't show some of the diagnostics that other coins do because of their shape and method of manufacture. The only two real giveaways are: 1. Fishtailing of letters near the clipped area 2. The transition of the raised rim to the clipped area won't be perfectly sharp. You should see a gentle slope on the raised area down towards the missing part of the coin. A damaged coin will just be "cut off". This can be difficult to detect on worn coins unfortunately. I'll try to take some pictures illustrating these two diagnostics and post them up later.
Edited by markn 04/26/2012 04:32 am
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Pillar of the Community
Australia
1295 Posts |
Below you can see a real 50c clip. Diagnostics to look out for are shown by A, B, and C. A. The metal in the second I has flow outwards toward the missing part of the coin. This is shown by the "ramp" at the bottom of that I which isn't present on the first I B. The raised rim curves ever so slightly outwards right near the missing area of the coin. Again, this is because the metal in this area tends to flow outwards when it is struck. C. The height of the raised rim (the dimension into and out of the plane of the image) is fairly constant apart from the rim immediately near the clipped region. In this area the height diminishes very gently towards the missing region of the coin. 
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Pillar of the Community
Australia
515 Posts |
markn the engineer seems to have appeared in the last posts. The main reason 50c clips are more difficult to determine as real is that they don't show the Blakesley effect as the planchets are not pre-rimmed before striking. So if you can't see any definate fishtailing it's often a bit of a guess.
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Formerly nancyc
Australia
5385 Posts |
Thanks Mark, for all the great info. 
life is a mystery to be lived not a problem to be solved
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Replies: 22 / Views: 4,962 |
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