<Table> Mercury (Winged Liberty) dime <Tr> <Td_colspan="2"> United States </Td> </Tr> <Tr> <Th> Value </Th> <Td> 10 cents (0.10 US dollars) </Td> </Tr> <Tr> <Th> Mass </Th> <Td> 2.500 g except 2016 gold issue: 3.110 g </Td> </Tr> <Tr> <Th> Diameter </Th> <Td> 17.91 mm except 2016 gold issue: 16.50 mm (0.705 in except 2016 gold issue: 0.650 in) </Td> </Tr> <Tr> <Th> Edge </Th> <Td> 118 reeds </Td> </Tr> <Tr> <Th> Composition </Th> <Td> <Ul> <Li>. 900 silver </Li> <Li>. 100 copper </Li> <Li> 2016: . 9999 gold </Li> </Ul> </Td> </Tr> <Tr> <Th> Gold </Th> <Td> (2016 only) 0.10000 troy oz </Td> </Tr> <Tr> <Th> Silver </Th> <Td> 0.07234 troy oz </Td> </Tr> <Tr> <Th> Years of minting </Th> <Td> 1916--1945 for commerce, 2016 as a gold commemorative </Td> </Tr> <Tr> <Th> Mint marks </Th> <Td> D, S, (2016 only) W. Located on reverse between letter "E" in "ONE" and the base of the olive branch . 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> A young Liberty, with winged cap </Td> </Tr> <Tr> <Th> Designer </Th> <Td> Adolph Weinman </Td> </Tr> <Tr> <Th> Design date </Th> <Td> 1916 </Td> </Tr> <Tr> <Th_colspan="2"> Reverse </Th> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th> Design </Th> <Td> olive branch, fasces </Td> </Tr> <Tr> <Th> Designer </Th> <Td> Adolph Weinman </Td> </Tr> <Tr> <Th> Design date </Th> <Td> 1916 </Td> </Tr> </Table> <Tr> <Td_colspan="2"> United States </Td> </Tr>

Where do you find the mint mark on a mercury dime