What is the oldest yen coin in Japan?
Could you elaborate on the history and significance of the oldest yen coin in Japan? I'm curious to know its date of origin, the context in which it was introduced, and if it holds any particular value today. Understanding this coin could potentially reveal insights into Japan's economic history and cultural heritage. Would you be able to provide details on its design, minting process, and if it's still in circulation or considered a collector's item? I'm fascinated by the intersection of finance and history, and this topic seems particularly intriguing.