Guys, if you find one of these, i URGE you guys not to sell them. Trust me, in a few years time there will be less of them in circulation, and the prices will go up. just keep them, and if you can get your hands on one for a few hundred pounds, you might want to buy one, it will make for a good investment.
One went for nearly £6,000 today on ebay!
This is not fake. people actually are paying thousands of pounds for these (this seller even had the cheek to demand P&P, haha!)
20 pence coin 20p UNDATED MINT ERROR collectable
Please be aware of their value and don't get ripped off