Login

UK's new 12-sided £1 said to be the world's most secure coin

edge_new_1_pound_coin.0.jpg

The UK is planning to introduce a new 12-sided £1 coin that it says will be the hardest in the world to fake. Pending approval, the dodecagonal prism will replace the current cylindrical design, and will feature a number of security measures to prevent counterfeiting. The Royal Mint, a government-owned company responsible for minting all the UK's coins, says the new bi-metallic coin will be the first to integrate iSIS, a technology introduced last year with three layers of security.

The UK's Chancellor shows off one of the new coins on Twitter.

The first coin to embed banknote-like security

Although it's somewhat vague about how the new technology works, the Royal Mint says iSIS embeds "proven" security technology from banknotes into coins. The idea is to enable automated verification of authenticity through "overt, covert, and forensic" markings, so a vending machine, for example, will know if a coin is real by more than its weight, shape, and size.

There hasn't been a 12-sided coin in circulation in the UK since 1971, when the country decimalized its currency and retired the threepenny coin. The UK decided to replace its £1 note with a £1 coin in the eighties, and since then it's had a fairly simple circular design. The current coin is apparently easy to counterfeit —HM Treasury suggests as many as three percent of the £1 coins in currently in circulation are fakes. The new coin isn't expected to enter circulation until 2017.

Correction: This article originally referred to the new coin as a "dodecagon." While the two-dimensional shape on each side of the coin is indeed a dodecagon, the fact remains that coins are three-dimensional objects. As such, the correct way to describe a 14-faced shape is as a tetradecahedron, and this particular tetradecahedron is a dodecagonal prism. The article has been modified to reflect this.

Thanks, Trevor!

The Verge
X
Log In Sign Up

forgot?
Log In Sign Up

Please choose a new Verge username and password

As part of the new Verge launch, prior users will need to choose a permanent username, along with a new password.

Your username will be used to login to Verge going forward.

I already have a Vox Media account!

Verify Vox Media account

Please login to your Vox Media account. This account will be linked to your previously existing Eater account.

Please choose a new Verge username and password

As part of the new Verge launch, prior MT authors will need to choose a new username and password.

Your username will be used to login to Verge going forward.

Forgot password?

We'll email you a reset link.

If you signed up using a 3rd party account like Facebook or Twitter, please login with it instead.

Forgot password?

Try another email?

Almost done,

By becoming a registered user, you are also agreeing to our Terms and confirming that you have read our Privacy Policy.
Spinner.vc97ec6e

Authenticating

Great!

Choose an available username to complete sign up.

In order to provide our users with a better overall experience, we ask for more information from Facebook when using it to login so that we can learn more about our audience and provide you with the best possible experience. We do not store specific user data and the sharing of it is not required to login with Facebook.