The new 12-sided pound coin, the shape of which resembles the old three-penny bit, entered circulation in March and boasts new high-tech security features The old round pound is on the way out ...

The coin in question was among the first of the new type of 12-sided £1 coins created by the ... 1 coin introduced in March 2017 to replace the old round pound. But did you know some of these ...

The coin in question is one of the initial batch of the new 12-sided £1 coins produced by the ... coin introduced in March 2017 to replace the old round pound. But did you know some of these ...

The coin in question is one of the initial batch of the new 12-sided £1 coins produced by the ... coin introduced in March 2017 to replace the old round pound. But did you know some of these ...

The 12 sided £1 coin replaced the old round design in 2017(Getty) Check Your Change clarifies that the coins with this mark were sold as part of a pair set from the Royal Mint in 2016.