Overview

• The 2011 Olympic Aquatics 50p coin, released by the Royal Mint, features a rare 'lines over face' error on about 600 coins.
• The error, where wave lines obscure the swimmer’s face, was quickly corrected during production, making the flawed coins highly sought after.
• Recent sales of the error coin have reached up to £2,000 at auction, with a sealed collector's edition previously selling for £3,766 on eBay.
• Experts and social media influencers, including the Coin Collecting Wizard, are advising the public to inspect their 50p coins for this rare variant.
• The Royal Mint and auction houses like RWB Auctions confirm that these coins regularly sell for over £1,000, with authentication recommended for potential sellers.