In September 2013 the Bank of England opened a period of public consultation about the introduction of polymer, or plastic, banknotes, which would be introduced into circulation from 2016 if the proposals were supported. The polymer notes will be "around 15% smaller" than the notes being replaced. Following the consultation, in December 2013, the Bank confirmed that plastic or polymer notes would be brought into circulation in 2016 with the introduction of the £5 note featuring Sir Winston Churchill. A spokesman for LINK, the company that operates many of the cash machines in the United Kingdom, said there would need to be significant investment as machines would need to be altered to fit the polymer £5 banknotes, which would be smaller than the previous ones. The Jane Austen polymer £10 note went into circulation in September 2017. The £20 shows J. M. W. Turner (from a self-portrait), the quote "Light is therefore colour" from an 1818 lecture by Turner, and a view of "The Fighting Temeraire".