Watch List notes:

Halfcrowns (22) 1816, 1834, 1845 5 overstruck, the underlying figure unclear, 1850, 1881, 1889, 1899, 1902, 1935, 1947, 1948 (3), 1949, 1950 (2), 1951, 1953, 1953 Proof, 1967 (3) in mixed grades some later dates EF

Estimate: 200-250 GBP