On the 15th, the annual "Monetary Examination" was held at the Mining Bureau in Kita-ku, Osaka to inspect whether coins such as 500 yen were made with the specified weight.
The "Monetary Examination" is held every autumn, starting in 1897 to ensure that there is no variation in money and to maintain trust.
The 150th milestone is to commemorate the widely distributed 6 types of coins from 1 yen to 500 yen, the new 500 yen coins that began to be issued this month, and the 150th anniversary of the modern monetary system. A total of 12 types of coins were targeted.
In the test, the staff put 26,250 coins, which had been extracted and stored in advance from the coins manufactured in the past year, on the balance one after another.
In the case of the new 500-yen coin, which began to be distributed this month, the weight of 1000 coins is required to be within 13 grams from the specified 7100 grams.
An inspection on the 15th confirmed that all coins were within the error of the standard, and the person in charge reported to Mr. Masahiro Komura, Parliamentary Vice-Minister for Finance, that "it meets the standard and is appropriate".