One 20p coin, minted back in 1983, was made on a copper-coloured blank by mistake, creating a rare bronze 20p. These coins are much sought after by collectors and are far more valuable than their ...

The coin was minted back in 1983 onto a copper coloured blank by mistake, resulting in a very rare bronze 20p. A seller flogging the coin was intrigued by it so sent it off to the Royal Mint back ...

The coin, minted in 1983, was mistakenly struck onto a copper-coloured blank, resulting in an extremely rare bronze 20p. The intrigued seller sent it to the royal mail for evaluation in 2016.

One 20p coin, minted back in 1983, was made on a copper-coloured blank my mistake, creating a rare bronze 20p. These coins are much sought after by collectors and are far more valuable than their ...

Meanwhile, a bronze 20p coin also caused a stir online after experts claimed it sold for nearly £800 recently. The user continued: "One mistake collectors want to get their hands on is this ...

One 20p coin, minted back in 1983, was made on a copper-coloured blank my mistake, creating a rare bronze 20p. These coins are much sought after by collectors and are far more valuable than their ...

Rare coins could be worth hundreds of times more than their face value, as one person found out when they sold a 20p coin for more than £230 on… ...

One 20p coin, minted back in 1983, was made on a copper-coloured blank by mistake, creating a rare bronze 20p. These coins are much sought after by collectors and are far more valuable than their ...