Watch List notes:

Halfcrowns (9) 1921 GVF/NEF, 1922 Davies 1670 Fine/NVF, 1923 GVF, 1925 Good Fine/About VF, Rare, 1926 Modified Effigy NVF, 1927 First Reverse Good Fine, 1928 GVF/NEF, 1929 NEF/EF, 1930 Fine the reverse slightly better

Estimate: 150-200 GBP