Watch List notes:

Halfcrowns (3) 1926 First Head ESC 773, Bull 3728 EF, 1926 Modified Effigy ESC 774, Bull 3729 Fine with a depression on the shield on the Scottish lion, 1926 First Head, No lower colon after OMN ESC 773A, unlisted by Bull, VG, rated R2 by ESC

Estimate: 40-80 GBP