This rare coin still in circulation is worth the modest sum of... 115 million euros

In the vast world of numismatics, there is the art of collecting coins. Some finds are almost miracles. There are rare coins, limited editions, typing errors that make them precious and then there is this one. A unique piece of its kind, always allowed to circulation, that could go unnoticed in a cash register, slip into a money rendering or drag to the bottom of a drawer. Except that its value is nothing in common, because it is worth 115 milli…