Watch List notes:

Gibraltar, set of 4x specimens for £1, £5, £10 and £20, 1975, 'Collector Series Specimen', serial number *006221,(Pick 20CS1, 21CS1, 22CS1, 23CS1), graded PMG 67EPQ, 66EPQ, 66EPQ and 65EPQ respectively (4).

Estimate: 2000 - 3000