Watch List notes:

Ulster Bank Ltd, polymer £20, 22 February 2019, serial number AA222222, purple and pink, hawthorne flowers and a butterfly at centre, outline of Lough Neagh in transparent security window, eels at left, reverse, images of Derry/Londonderry's world-famous Halloween celebrations, street entertainers and their audience, tiles and brickwork inspired by Northern Ireland's red-brick tenement buildings, patterns and ornate decoration found on and in famous public buildings, (PMI UB101), uncirculated.

Estimate: £350 - £450