Here are 20 rare state quarters worth additional value, according to Gainesville Coins, USA CoinBook and PCGS. Keep in mind that “error” coins — the ones primarily included on this list ...

One 20p coin, minted back in 1983, was made on a copper-coloured blank by mistake, creating a rare bronze ... for decorative pictures. It has often been used to celebrate big events over the past 50 ...

While buying known rare coins can be a costly venture ... collectors are starting to enter the picture.” Trending Now: 4 Kennedy Half Dollar Coins That Are Worth Up to $150K For You: 5 Things ...