Watch List notes:

Halfcrowns in CGS holders (10) 1914 CGS 70, 1920 Dull finish CGS 55, 1922 Dull finish CGS 45, 1924 CGS 65, 1926 First Head CGS 25, 1926 First Head with lower colon dot after OMN weak CGS 15 (Ex-Roland Harris collection), 1926 Modified Head CGS 65, 1929 CGS 78, 1932 CGS 65, 1936 CGS 80

Estimate: 180-250 GBP