Watch List notes:

Bank of England, D.H.F.Somerset, ERROR £20, ND (1981), serial number E06 862219, purple and multicoloured, Elizabeth II at right, Saint George and the dragon at top centre, reverse purple, William Shakespeare and the balcony scene from Romeo and Juliet(EPM B350), a most unusual error with an additional flap of paper top centre and a blank segment on the note top centre, rare.

Estimate: £600 - £700