Wait... This isn't a new 500 yen coin! Vending machines were adapted to reject the old cupronickel 500 yen coins by having the machines only recognize the conductivity given off by the nickel brass used in the new coins. The production of cupronickel 500 yen coins ended in 1999 due to incidents of counterfeit coins being used to rig vending machines.
Wait... This isn't a new 500 yen coin! Vending machines were adapted to reject the old cupronickel 500 yen coins by having the machines only recognize the conductivity given off by the nickel brass used in the new coins. The production of cupronickel 500 yen coins ended in 1999 due to incidents of counterfeit coins being used to rig vending machines.
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