Niewmismatic Error Coins

Queen Elizabeth II 1961H 10 Cents Coin With Multiple Errors
Rarity:RRR
When Dickson Niew Collection Shop at Subang Jaya was resumed business after the Chinese New Year Holidays, my shop was visited by many visitors daily.
I was lucky yesterday when I was offered a piece of Queen Elizabeth II 1961H 10 Cents Coin With Multiple Errors. Although it was not an uncirculated coin in condition but it was a very interesting coin with various errors. 
Among the errors found on this coin are:
1) Curve Clip Error at 2 to 4 o'clock position (Obverse).
2) Rim Clip Error at 5 to 6 o'clock position (Obverse).
3) Blakesley Effect at 8 to 10 o'clock position. (Obverse) and
4) Blakesley Effect at 11 to 12 o'clock position (Obverse).
The the term "Curve Clip" is actually a popular misnomer that error collectors tend to accept in describing a general class of planchet error that originates with a blank that was produced with an incomplete area of metal at its edge. The error occurs when a blank is punched from out of an area of strip that overlaps a hole (or holes) from where a blank was previously punched out.
Clipped planchets occur when a thin strip of coining metal is fed into a machine for blanks to be punched out. Sometimes the strip of metal will not be properly fed into the punch, which causes a blank to be punched out that overlaps the spot where an earlier blank was punched out.


The incomplete planchets are called “rim clips” because they are so small that only the rim is affected. Often the rim is fully upset and the resultant coin shows very little missing metal. Clad planchets show a reversal of the clad layer on the edge. Technically, the term “disc clip” is reserved for clad coinage and the term “rim clip” is used for non-clad coinage. In practical usage they are synonyms.

The Blakesley effect is named for the American numismatist who first described it.
The Blakesley effect occurs on most genuine clipped planchet error coins and is characterised by weakness in the rim opposite the clipped end of the coin. The Blakesley Effect is a term used to describe inefficient metal flow, opposite a clip on a coin ( "opposite a clip on a coin" it means the effect will be more or less CW/CCW180 degrees around the rim) from the clipped area., when the rim is formed and the subsequent imperfect or incomplete rim formed at that position after striking.

To tell whether or not your coin exhibits the Blakesley effect, simply check the rim of the coin directly opposite the clip. If it appears the details are lacking in that area and the rim appears flat, then it is more than likely that you have a genuine clipped planchet error.

Read more: http://dniewcollectors.blogspot.com/2012/04/blakesley-effect-on-clip-error-coins.html#ixzz3SlWZyC5A