Watch List notes:

British Linen Bank, £20 (2), 1955, 1962, prefixes A/5 and G/5, blue and pale red, bank initials in pale red underprint at centre, arms top centre, Britannia at left, printed signature of Anderson low centre, reverse blue, Britannia at centre
(PMS BL68e, 73, Banknote Yearbook SC235b, 236), fine and very fine (2 notes)