Watch List notes:

(x) Isle of Man Government, £20, ND (1979), serial number 005050, red, Queen Elizabeth II at right, arms at centre, signature,
W. Dawson, reverse, scene at Laxey wheel in 1854, This series starts at 005001 making this a very low number 50 note,, (IMPM M527, Pick 37a), in PMG holder 67 EPQ superb gem unc.

Estimate: £350 - £400