Watch List notes:

Switzerland, Confederation, silver half-francs (79), Helvetia standing, rev. date and value in wreath, in incomplete run of dates and some duplication, 1875-1964: 1875 (2), 1877, 1878, 1879, 1881 (2), 1882 (2), 1894, 1898 (2), 1900, 1901, 1903-1906, 1907-1910 (2 of each), 1913 (3), 1914 (2), 1916 (2), 1920-1921 (2 of each), 1928 (2), 1929, 1932 (2), 1934, 1936 (3), 1937 (2), 1940 (2), 1942 (2), 1943, scarce, 1944 (2), 1945, 1946 (2), 1948 (3), 1950 (2), 1951, 1952, 1953 (2), 1956-1958 (2 of each), 1959-1964, HMZ 1206; KM.23), early dates fine to very fine, later mostly extremely fine (79)

Estimate: 200 - 250 GBP