A new set of 50 pence coins has been released by the Royal Mint, in commemoration of the London 2012 Olympic Games, Metro reports.
29 new designs have been commissioned, symbolising each of the Olympic and Paralympic disciplines. The designs were submitted by members of the public, who entered a competition launched by the Mint for ideas.
One of the more unusual coins depicts the offside rule via its precision engraving; forming a simple rectangle, representing the pitch with arrows and position indicators. The words "offside" and "not offside" explain the rule.
The coin was designed by Neil Wolfson, a self-confessed football fan who told The Telegraph: "I'm a sports journalist by trade and I saw this opportunity as a natural extension of what I do.
"This design itself is just a case of lateral thinking. I'm a football fan, I followed the Premier League since its inception and if I had 50p for every time someone had asked me to explain the offside rule, I'd be a rich man."
It took the judging panel months to choose the winning 29 designs from the 30,000 that were entered into the competition in 2009. Other coins include goalball, boccia, gymnastics and swimming.
The collectible coins will be available to buy from the Royal Mint at £2.99 each.