Watch List notes:

Bank of England, Sarah John, polymer £20, ND (20 February 2020), serial number AA01 001794, purple and multicoloured, Queen Elizabeth II at right and in a transparent window at left with text £20 BANK OF ENGLAND. Margate lighthouse in gold and the Turner Contemporary in blue appear over the window, a second smaller window based on Tintern Abbey low right. Reverse purple, a self portrait of Turner and his painting of The Fighting Temeraire in field, a purple foil patch at upper right with letter T is based on the staircase at the Tate Britain, (EPM B416), this serial the year of Turner's famous painting 'The Chancel and Crossing of Tintern Abbey, looking towards the East window'.

Estimate: £300 - £400