A decade after being struck, a wrong planchet error has been
discovered for a 2007 British coin.
The £2 coin is supposed to be struck as a ringed-bimetallic coin,
with an outer band of nickel-brass surrounding an inner disc of
copper-nickel. Instead, a collector in the north of England found an
example struck on a solid planchet.
The collector, identified only as Mr. C, had set the coin aside
after finding it several years back, with the intention of looking the
coin up “one day,” according to the firm of Chard in Blackpool,
England, which announced the discovery.
Prompted by media coverage of various Royal Mint products and errors
over the last few years, the finder checked his coins and
“rediscovered” the error.
The fallout from the Enhanced Uncirculated Coin
Another column in the August 21 weekly issue of Coin World reveals
that while forms of numismatic literature like fixed-price lists
were meant to be fleeting, they can actually be quite useful.
“His initial thoughts were that the coin could have been a
forgery,” according to Lawrence Chard. “This would have been our first
thought too. However on closer inspection, the size and weight were
the same as other £2 coins but there was no sign of any join for a
central inner disc.”
There is no sign of any piercing to allow for a center disc to be
inserted. On a typical coin the inner disc is placed inside the outer
band and when the coin is struck the pressure merges the two parts
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Deciding that it would be worth getting an expert opinion, Mr. C in
September 2016 contacted the Royal Mint Museum to determine the origin
of the error.
Chris Barker, assistant curator, responded with a letter suggesting
that the coin did appear to be struck in nickel-brass and that the
coin would be submitted for further analysis.
On April 6, 2017, Barker wrote back verifying that the 2007 £2 coin
was indeed a striking error. An unpierced nickel-brass blank had been
struck between the two dies for the 2007 technology £2 coin. In an
email, it was mentioned that Barker had only seen four to five similar
coins but never a £2 coin of this kind during his time at the Royal Mint.
Over the last decade, a small number of error coins have been discovered.