This came across my desk today. Kinda makes me dizzy trying to figure it out. I figured I'd let you guys have a crack at it. haha!
It's a Chinese guang xu yuan bao (光绪元宝) 10 cash coin "minted" in Zhejiang Province (浙江) struck over a Korean 5 fun coin dated 1896 (開國505年). However, these overstruck coins did not come from official mints as I explain in this article. Gary