<Table> Ten pence <Tr> <Td_colspan="2"> United Kingdom </Td> </Tr> <Tr> <Th> Value </Th> <Td> 0.10 pound sterling </Td> </Tr> <Tr> <Th> Mass </Th> <Td> (1968--1992) 11.31 g (1992--present) 6.5 g </Td> </Tr> <Tr> <Th> Diameter </Th> <Td> (1968--1992) 28.5 mm (1992--present) 24.5 mm </Td> </Tr> <Tr> <Th> Thickness </Th> <Td> (Cupro - nickel) 1.85 mm (Steel) 2.05 mm </Td> </Tr> <Tr> <Th> Edge </Th> <Td> Milled </Td> </Tr> <Tr> <Th> Composition </Th> <Td> Cupro - nickel (1971--2012) Nickel - plated steel (2012--) </Td> </Tr> <Tr> <Th> Years of minting </Th> <Td> 1968--present </Td> </Tr> <Tr> <Th_colspan="2"> Obverse </Th> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th> Design </Th> <Td> Queen Elizabeth II </Td> </Tr> <Tr> <Th> Designer </Th> <Td> Jody Clark </Td> </Tr> <Tr> <Th> Design date </Th> <Td> 2015 </Td> </Tr> <Tr> <Th_colspan="2"> Reverse </Th> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th> Design </Th> <Td> Segment of the Royal Shield </Td> </Tr> <Tr> <Th> Designer </Th> <Td> Matthew Dent </Td> </Tr> <Tr> <Th> Design date </Th> <Td> 2008 </Td> </Tr> </Table> <Tr> <Td_colspan="2"> United Kingdom </Td> </Tr>

When did the old 10p go out of circulation
find me the text answering this question