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 Replies: 10 / Views: 1,302 |
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Pillar of the Community
United Kingdom
2217 Posts |
Just wondering how it is possible to tell if a coin for sale which is allegedly an 'error' coin really is a genuine error when a slice of it is missing. Isn't this always a bit suspicious? I mean, passing off coins which have been clipped as errors - wouldn't this be an easy con?
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Valued Member
United States
69 Posts |
I would think that this would be the easiest of all errors to mimic. I found what I thought was a clipped lincoln the other day, but after examining the edges carefully, I decided that someone was having a go at the coin with a pair of snips and so I put it back into circulation. This is one of the errors I would like to find along with off center strikes, but I haven't found one yet.
- Tony
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Valued Member
United States
160 Posts |
Hello NumisMattyUK, you might want to read the followin on the Blakeslay effect, it doesn't always apply but it is a good start. http://www.triton.vg/clip.htmlgood hunting, |
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Member
United States
703 Posts |
Blakeley's Effect basically means that the metal wants to "flow" towards the clip. You can see the metal and design kinda smear to the clip. It is very obvious on many clips and not so on some. As far as buying one, I do buy on ebay, but, I only buy certified clips or clips from a trusted dealer. errror |
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Pillar of the Community
 United Kingdom
2217 Posts |
How come neither of you can spell Blakesley? heh... I am reading the link daveyn posted but it's as clear as mud.. Mr. Ken Potter is even worse at explaining this.. http://koinpro.tripod.com/Articles/...gnostics.htm  I don't get the bit where it says the blank isn't clipped...the punching mechanism just clipped it out surely? is the metal still liquid Edited by NumisMattyUk
07/04/2007 7:54 pm
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Member
United States
703 Posts |
LOL I used the spell check ... talk to bobby
errror
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Bedrock of the Community
United States
12437 Posts |
quote:
I would think that this would be the easiest of all errors to mimic.
Not if you know precisely to look for. The Blakesley Effect is one but also the clip will have a tapered edge and metal flow lines will be in the direction of the clip. Those diagnostics are not easily faked but they can be difficult to explain so you will learn best by examining coins with genuine clips. quote:
I don't get the bit where it says the blank isn't clipped...the punching mechanism just clipped it out surely?
is the metal still liquid
As the sheet metal is fed through the blanking machine the blanks are punched out. If the sheet does not advance far enough ahead since the previous blanks were cut out, the new cut will partially overlap the last cut area creating a void on the new blanks. Also, since coinage presses involve multiple tons of force, the metal essentially takes on the flowing properties of a liquid for fractions of a second during the striking process. Edited by biokemist6
07/05/2007 01:34 am
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Valued Member
United States
160 Posts |
Hello Biokemist6, As Susan knows, I run a sheet metal shop here in St. Louis, made quite a few camera stands for a few members here and there. I have in the past tried my hand at creating what would look like an authentic clip, I too believed it might easily be done. I have at my disposal a 30 ton Strippit single station punch that can mimic any size clip, and with a file a few other tools, and some chemicals can create a pretty good copy. I'm sure someone like coppercoins would not fall for it, but there are a lot of unsuspecting collectors out there that would. I'm very careful when buying clips, I never buy off ebay where you rarely have a good pic of what it is your buying. Take care, |
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Pillar of the Community
United States
2540 Posts |
be careful, and study, study, study.
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Member
United States
703 Posts |
I just agreed to buy a clip error for some serious cash so I guess they are collectible.
A few years ago I never thought I would ever spend that much on a "clip"
errrror
Edited by Errorcoins
07/06/2007 01:31 am
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Pillar of the Community
United Kingdom
2217 Posts |
Verry nice, but I am not advanced enough to be investing in such luxuries as eror coins!
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Replies: 10 / Views: 1,302 |
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Posted 07/04/2007 5:58 pm
