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 Replies: 19 / Views: 4,161 |
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Pillar of the Community
 1119 Posts |
neither do I thats why I'm asking, the seller seems legit so I'm not doubting him just my knowledge
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Pillar of the Community
Australia
841 Posts |
 Thanks erkle as this is how we learn mate  Just so much to learn and so little time |
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Valued Member
Australia
369 Posts |
100 % Genuine. No doubt whatsoever. Just another case of scrambled info coming up with the wrong conclusion.  |
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Pillar of the Community
Australia
1295 Posts |
Looks 100% real to me too.
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Pillar of the Community
1119 Posts |
so no one can detail why they think its real? thanks tpp for your answer.
airgem? I have asked questions here, trying to learn whats your point?
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Pillar of the Community
Australia
1295 Posts |
Blakesley effect confirms that it is real. There's also some weakness very close to the clip (the II on the obverse for example) which is also typical of real clips. I think the out of roundness you're seeing is an optical illusion because of the flat spot due to the Blakesley effect.
Edited by markn
04/03/2012 04:17 am
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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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Valued Member
Australia
323 Posts |
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Valued Member
Australia
369 Posts |
We are all only trying to help.  with Markn. You seem to base your doubt on "Fishtailing". I have seen thousands of clipped coins and have never seen fishtailing on Australian coins. However, I don't doubt they exist. Sometimes experience is worth a lot more than flawed over- analysis. So, to sum up, presence of the Blakesely Effect is the No 1 indicator and weakness(however slight)around it confirms it. No other analysis is needed. There are some clips that do not have the Blakesely Effect, for example incorrect creation of the Planchet or Blank. All this info is freely available to all. |
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Pillar of the Community
Australia
1295 Posts |
Fish tailing is actually pretty common on Australian clips both decimal and pre-decimal, it's more evident on larger clips though. This is because there's more metal flow to the clipped area in larger clips and the fish-tailing is a metal flow effect. The Blakesley effect will only be seen on coins whose rims are pre-formed by an upset mill. Coin's whose edge is applied during the striking process will not display the effect. You can see both the fishtailing and strike weakness clearly on this clipped half penny of mine:  |
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Valued Member
Australia
369 Posts |
The "Fishtailing" is caused by a deteriorating die and not the clip. I have examples of this date with the "Fishtailing" but no clip. it is nothing more than coincidence and has nothing to do with the clip.  |
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Pillar of the Community
Australia
515 Posts |
I would tend to just agree with anything markn "the clip king" says.
I disagree that fishtailing has no relationship to the clip. I think it is a major contributing factor when determining if the clip is real or fake.
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Pillar of the Community
Australia
1295 Posts |
Quote:
The "Fishtailing" is caused by a deteriorating die and not the clip. I have examples of this date with the "Fishtailing" but no clip. it is nothing more than coincidence and has nothing to do with the clip. Entirely disagree. Fishtailing is a sign of radial metal flow not die wear. It's seen on clips and it's seen on out of collar mis-strikes. I can put up a number of images showing fish tailing on design elements around clips and on coins whose strike was un-restrained by a collar. |
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Pillar of the Community
Australia
1295 Posts |
OK I will post some images after all. Apologies for the size. The first is an elliptical clip. You can see clear fish tailing around on the legends on the left side of the coin as this area was un-restrained by the collar. Conversely there's no fishtailing on the legends on the right side of the coin as this was constrained by the collar. The second image is an out of collar 50c. This shows fishtailing of the legends around the entire circumference of the coin. Because of course there was no collar to stop the metal flowing outwards.   |
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Pillar of the Community
Australia
1295 Posts |
OK here's one more for giggles. It's a $2 we got last week. You can see clear fish tailing on the LIA of Australia on the obverse right near the clip. And no fish tailing anywhere else. Fishtailing is a result of unconstrained radial metal flow, not deteriorated dies.  Edited by markn
04/04/2012 05:29 am
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First Page
Posted 04/02/2012 08:23 am
