Not any known emperor. Paris, who has god-like qualities when it comes to Chinese, states
here that it says
Shi qien tong bao, or money of ten units. An eBay seller identified it as a Korean 1678, which makes no sense to me. I also find the diameter of 36 mm (our eBay enthusiast says 40 mm.) too large to be true.
My verdict: modern Chinese fantasy. What do you think?
Peter