A one pound coin issued by the Royal Mint is a trail coin in the circulation. This coin is not a legal tender and issued to help retailers calibrate coin handling equipment. Around 200,000 trail coins were sent out. These coins are stamped with the world trail on it.
These trial coins were issued in 1994, they are the perfect specimens for the collector around the world. These coins are already making interest crazy, this coin is sold for 150 to 300 Pounds.
Image Courtesy: metro.co.uk