<Table> Buffalo nickel <Tr> <Td_colspan="2"> United States </Td> </Tr> <Tr> <Th> Value </Th> <Td> 5 cents (. 05 US dollars) </Td> </Tr> <Tr> <Th> Mass </Th> <Td> 5.000 g </Td> </Tr> <Tr> <Th> Diameter </Th> <Td> 75mm mm (0.8350 in) </Td> </Tr> <Tr> <Th> Edge </Th> <Td> Plain </Td> </Tr> <Tr> <Th> Composition </Th> <Td> <Ul> <Li> 75% copper </Li> <Li> 25% nickel </Li> </Ul> </Td> </Tr> <Tr> <Th> Years of minting </Th> <Td> 1913--1938 </Td> </Tr> <Tr> <Th> Mint marks </Th> <Td> D, S. Centered under "FIVE CENTS" on the reverse . Philadelphia Mint specimens lack mint mark . </Td> </Tr> <Tr> <Th_colspan="2"> Obverse </Th> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th> Design </Th> <Td> Right profile of an American Indian </Td> </Tr> <Tr> <Th> Designer </Th> <Td> James Earle Fraser </Td> </Tr> <Tr> <Th> Design date </Th> <Td> 1913 </Td> </Tr> <Tr> <Th> Design discontinued </Th> <Td> 1938 </Td> </Tr> <Tr> <Th_colspan="2"> Reverse </Th> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th> Design </Th> <Td> An American bison </Td> </Tr> <Tr> <Th> Designer </Th> <Td> James Earle Fraser </Td> </Tr> <Tr> <Th> Design date </Th> <Td> 1913 </Td> </Tr> <Tr> <Th> Design discontinued </Th> <Td> 1913 </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th> Designer </Th> <Td> James Earle Fraser </Td> </Tr> <Tr> <Th> Design date </Th> <Td> 1913 </Td> </Tr> <Tr> <Th> Design discontinued </Th> <Td> 1938 </Td> </Tr> </Table> <Tr> <Td_colspan="2"> United States </Td> </Tr>

Where is the mint mark on buffalo nickel
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