What Makes a Proof Coin So Valuable?
As they undergo multiple strikes, Proof Coins have enhanced detail and sharpness in the design. The special treatment and polishing on both sides of the coin make it exceptionally valuable.
They are usually presented in carefully packaged protective capsules or
presentation cases, along with a certificate of authenticity.
Why 20p Proof CoinsAre A Must-Have For Every Coin Collector!
How much is 20p worth? You might be surprised by the hidden value of these coins. Proof coins are recommended to add to your collection due to their exceptional quality, making them more valuable than regular coins.
INTERESTING FACTS
Usually, the 20p coin is made of silver. However, due to a production error, a scarce bronze 20p coin was created when it accidentally ended up in the wrong batch of 1p coins.
These bronze 20p coins do not have a specific year and are estimated to be valued at £750 each, but their scarcity can make them even more valuable.