The Royal Mint is introducing the new coin as it believes 3% of existing £1 coins are fake A new £1 coin, billed by the Royal Mint as the "most secure coin in the world", is to be introduced in 2017. The move comes amid concerns about the 30-year old coin's vulnerability to counterfeiting, with an estimated 45 million forgeries in circulation. The new coin is based on the design of the old threepe