In 2017 we welcome the new 12-sided £1 coin into circulation, the first major change to the £1 coin specification since it replaced £1 notes in 1983. After 33 years, featuring 24 circulating designs we finally bid farewell to the last ‘round pound’ and welcome its state-of-the-art successor.
More than 500 million 2016-dated new 12-sided £1 coins have been struck in readiness for launch into circulation in March 2017. This set features a Brilliant Uncirculated new 2016-dated £1 coin, one of the only 2016-dated new pounds to be released as a commemorative edition. It bears a ‘cross crosslet’ mint mark, unique to the commemorative editions and not found on the 2016-dated 12-sided £1 coins in circulation.
Llantrisant Mint Mark
In 1983 a mintmark was introduced on the new one pound coin issued for the first time in that year.
On the milled edge of the coin is the Llantrisant mint mark - a cross crosslet. This is the first United Kingdom coin to be struck with this distinctive feature. The shape of the cross alluding to Llantrisant, which translated from the Welsh means "Church or Parish of the Three Saints".