Sorry, but the information on the ticket is wrong. This coin is not from China, and not from 1143. The Chinese did not put "waves" on the back of their coins. This coin is from Japan, a 4 mon "11 waves" type, dating from the period 1769-1859.
Here's a good reference page for the type.
Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis