Watch List notes:

Halfcrowns (39) 1818, 1875, 1883, 1901, 1915 (2), 1917, 1929 (2), 1930, 1934, 1937, 1937 Proof (2), 1938, 1940, 1941, 1942, 1943, 1944, 1945 (2), 1947, 1949, 1950, 1950 Proof, 1951, 1953, 1954, 1955, 1959, 1960, 1961 Polished Die, 1962 (2), 1963, 1965, 1966, 1967, first three VG to Good Fine, the 1930 Fine, the other 20th Century issues GVF to UNC

Estimate: 200-300 GBP