<Tr> <Td> Series G (polymer) </Td> <Td> By 2020 </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> 139mm x 73mm </Td> <Td> Front: Queen Elizabeth II Back: J.M.W. Turner </Td> <Td> </Td> </Tr> <P> Information taken from Bank of England website . </P>

When did the old £20 go out of circulation