The Most Valuable Japanese Coin: The Japanese Hishi Oban
In April of 2021, the most expensive Japanese coin sold at auction for nearly 2 million dollars: the Gold Hishi Oban. Coming from 1588, a time when feudal Japan was filled with samurai and ninjas, this unique piece of coinage is about the size of an American dollar bill, but it was struck from gold! But what makes this coin so rare?