Apparently, you usually get these when exchanging currency, you know?July 19th is the day the ¥2,000 banknote was released!
Between the years 2000 and 2003, there were about 800 million and 8 thousand banknotes issued by the Bank of Japan!¥2,000I just happened to obtain one, and went to look up its value, but...the half-spirit's stashA ¥2,000 note was worth ¥2,000.
(but if there are doubled digits in the serial number, the value goes up!)