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Counterfeit British one pound coins have been a problem for a number of years.


From an article in Significance Magazine.

In all the years I visited the UK I'd never found a fake pound coin. I was either lucky or insufficiently attentive, possibly both. A couple of weeks ago I finally got a coin that I recognized as fake. I thought I'd take a few side-by-side photos of this particular counterfeit next to a pound coin of the same date I believe is real.

In the images below the counterfeit is on the left and genuine coin is on the right. Click on an image to enlarge it.

IMG_7545
Obverse (front)

There is a slight color difference, but more or less within normal variation for pound coins.

IMG_7548
Reverse (back)

I tried to preserve the rotation of each coin as I turned it over. The fake coin is slightly out of alignment, but not to an obvious extent.

Two photos of the edge:

IMG_7553

IMG_7554

The reeding (graining) on the edge is fainter and uneven on the fake. The inscription is also crudely lettered compared to the real coin. Worse yet, it is the wrong motto. On a real 1994 pound coin, the edge should read "NEMO ME IMPUNE LACESSIT". Instead, it reads "DECUS ET TUTAMEN", which has been used in other years, but not in 1994.

Both coins make a similar dull thud when dropped onto a table, as pound coins do.

I have not weighed the two pounds but there is no discernable difference in heft when held.

The BBC says many fakes work in vending machines.

mrreid.org provides a convenient link to a WolframAlpha calculation of the current metal value of a pound coin. Currently, that calculation estimates that the face value of the pound is about twenty times the metal value. That large difference is evidently enough to attract counterfeiters.

(no subject)

Date: 2013-04-11 01:27 pm (UTC)
From: [identity profile] cerebralpaladin.livejournal.com
Really neat! (I mean, the underlying problem isn't, but...) How did you identify the difference? The motto clinches it, but you're a more fastidious man than I if you check the mottoes on the coins.

(no subject)

Date: 2013-04-11 02:17 pm (UTC)
From: [identity profile] digitalemur.livejournal.com
Where did you take the edge photos? I'm guessing that was the bathroom counter.

Nice background on the face images!

(no subject)

Date: 2013-04-11 02:42 pm (UTC)
From: [identity profile] achinhibitor.livejournal.com
It's intriguing that it's actually worth the trouble to make fake one pound coins. Three percent of circulating coins being fake is pretty high. I wonder if the same is true of two euro coins?

(no subject)

Date: 2013-04-11 05:57 pm (UTC)
From: [identity profile] eyelessgame.livejournal.com
That's actually an interesting argument for the US not to make or popularize a dollar coin, since, as near as I can tell, 3D printing is soon going to make (is in the process of making) counterfeiting a coin easier than counterfeiting a bill (with its embedded fibers and translucent strips).

(no subject)

Date: 2013-04-11 05:57 pm (UTC)
From: [identity profile] contrariety.livejournal.com
This seems like another reason to go with paper money for moderate to large denominations.*

Although I do love the feel of pound coins; they are like the one coin that I feel strongly positive about.

(*I'm assuming that paper is harder to counterfeit - all those special tricksy things you can add to it that require special machines and materials - but maybe I'm wrong.)

(no subject)

Date: 2013-04-12 03:31 am (UTC)
From: [identity profile] jendaviswilson.livejournal.com
I find it hard to imagine 3d metal printing is going to be worth it for many years to come. The last best method I've used (couple years back) was a steel powder laser-sintered and then taken out and put in an oven where the gaps were filled by molten bronze. Then the final product needs to be finished and polished, all labor-intensive. The resolution limitations, machine cost, materials and labor are still crazy high. It will happen eventually, but a simple casting mold has got to be a lot less capital for a while yet.

I am also a terrible predictor of technology.
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