Gem Mint State Uncirculated Mexico silver 5 centavos coin.Struck at Guanajuato Mint (Go mint mark), assayer R.Very scarce over assayer variety: R over S.Certified by NGC to MS 65, Population Census: 2 coins, only 2 higher. Compare with the non-over assayer type with Pop 8/15.Fully lustrous and reflective surfaces, very light toning.Beautiful in hand.