Watch List notes:

National Westminster Bank (Trading As Ulster Bank), polymer £50, 1 March 2021, serial number AA000018, pink and red, gorse flowers and a cryptic wood white butterfly, a pine martin and the treeline of the Crom Estate at left, outline of Lough Foyle containing a smaller holographic foil in the shape of Lough Foyle in transparent security window, Mew Island optic micro pattern, damask patterns, reverse images of life science, creative industries, and aviation, the 'Millie' at her loom, punch cards to binary and the thread of industry, pulsar signature CP 1919, digital/industrial networks, Armagh limestone, (PMI UB103), uncirculated.

Estimate: £700 - £900