Watch List notes:

Isle of Man Government, Specimen £20, ND (1979), serial number 027050, bright red and brown on multicolour underprint, Elizabeth II at right and arms at centre, this with red 'SPECIMEN' overprint, signature with punch-hole cancellation, reverse view of the Laxey Wheel 1854 with jubilant crowd (and greyhound) in foreground,
(IMPM M527s3, Q529), about uncirculated