World of Coins

Modern European coins except the euro => UK and Ireland => Regular circulating decimal coins => Topic started by: malj1 on April 28, 2017, 08:15:55 AM

Title: Holes, cracks in `most-secure' new £1 coin ???
Post by: malj1 on April 28, 2017, 08:15:55 AM
On eBay (http://www.ebay.co.uk/itm/coin-or-token-Smaller-than-a-fivepence-Unidentified-Rare-/391768005899?hash=item5b37315d0b:g:WLwAAOSw~y9ZAo2u) today: a mystery coin which is in fact the centre of one these new pounds.
Title: Re: Holes, cracks in `most-secure' new £1 coin ???
Post by: Bimat on May 02, 2017, 05:21:48 AM
On eBay (http://www.ebay.co.uk/itm/coin-or-token-Smaller-than-a-fivepence-Unidentified-Rare-/391768005899?hash=item5b37315d0b:g:WLwAAOSw~y9ZAo2u) today: a mystery coin which is in fact the centre of one these new pounds.

The Sun now has a story (https://www.thesun.co.uk/money/3453520/the-new-1-coin-is-supposed-to-be-most-secure-in-the-world-but-some-have-loose-centres/) on it!
Aditya
Title: Re: Holes, cracks in `most-secure' new £1 coin ???
Post by: augsburger on May 02, 2017, 06:07:08 AM
And the Sun even manages to equate secure with security like a bank, oh, jeez, who buys this TRASH? It's like they're telling their 'readers' that people are going to break into their coins and.... and... and why would break into a coin?
Title: Re: Holes, cracks in `most-secure' new £1 coin ???
Post by: onecenter on May 02, 2017, 02:09:31 PM
Looks like the 21st century version of the Australian Holey Dollar and Dump.
Title: Re: Holes, cracks in `most-secure' new £1 coin ???
Post by: chrisild on May 02, 2017, 09:29:43 PM
Have not tried it out with a £1 coin yet, but the €1 can be separated with a little effort. Leaving it in a freezer for a few hours, and then dropping it, helps. ;) Has something to do with different thermal expansion coefficients, I once learned ...

Christian
Title: Re: Holes, cracks in `most-secure' new £1 coin ???
Post by: FosseWay on May 02, 2017, 09:33:47 PM
I've never taken a £2, €1 or €2 apart, and I've yet to see a £1 in real life, but occasionally Italian 500 lire coins would spontaneously disintegrate. These have a groove in the outer ring (around the circumference of the hole) and the middles have a corresponding ridge. Presumably this is supposed to offset the different thermal expansion characteristics of the metals.
Title: Re: Holes, cracks in `most-secure' new £1 coin ???
Post by: onecenter on May 02, 2017, 10:07:44 PM
I have some old Italian L.500 bimetallics that rattle, but I would never try to destroy a coin.  Makes me shudder.

Long ago, the Paris Mint had come up with a minting process that "locked" the center and ring as the planchet was struck.  I would imagine that such important technology has been shared with other European Union nations and possibly worldwide.
Title: Re: Holes, cracks in `most-secure' new £1 coin ???
Post by: chrisild on May 02, 2017, 11:31:57 PM
Taking such an absolutely not rare coin apart out of sheer curiosity is excusable, I think. (After all, I have done it myself one time. ;) ) More about the technology is in this older topic (http://www.worldofcoins.eu/forum/index.php/topic,5417.msg34328.html) by the way ...

Christian
Title: Re: Holes, cracks in `most-secure' new £1 coin ???
Post by: eurocoin on May 03, 2017, 09:46:07 AM
Good morning!

(https://c1.staticflickr.com/5/4175/34037636060_82c3092c13_o.png)
Title: Re: Holes, cracks in `most-secure' new £1 coin ???
Post by: chrisild on May 03, 2017, 12:06:42 PM
Hmm, what rag could that be? Ah, found it. ;)
https://www.thesun.co.uk/money/3466439/thousands-of-new-1-coins-carry-major-production-flaws-in-embarrassment-for-royal-mint-and-they-have-no-idea-how-many-more-have-faults/

Christian
Title: Re: Holes, cracks in `most-secure' new £1 coin ???
Post by: velind on May 04, 2017, 06:37:50 AM
Copy paste from Times of India news paper. (To be verified)

Zlata Rodionova
THE INDEPENDENT

The new 12-sided £1 coin described as the most secure in the world is facing a controversy just a month after entering circulation.

Some of the new coins, being sold on eBay , appear cracked or seem to be missing the middle part of the coin. Sellers say “minting errors“ have caused a number of the coins to separate. John Taylor, a coin collector, told The Sun: “It is a definite Royal Mint error. The sellers claimed they had come from a sealed bag from the bank, which in turn came from the Royal Mint.“