Watch List notes:

USA Proof Sets (20) 1959, 1960 Large date, 1961, 1962, 1963 (2, one unopened), 1964 (2, one unopened), 1978S (3), 1979S type I, 1980S (4), 1981S type I (4) the 1962 set with some toning nFDC, the 1981S sets nFDC lightly toning, the others with near full or full mint brilliance

Estimate: 100-150 GBP