Watch List notes:

Southern Rhodesia, George VI (1937-52), Halfcrowns, by George Kruger Gray (2), first issue [.925], large head, 1937 (KM 13; Schön 14); also, second issue [.925], small head, 1938 (KM 15; Schön 19), the first with faint hairlines, otherwise lightly toned overlying lustrous original surfaces, about extremely fine, the second better still (2).
The second with a reported mintage of 400,000 pieces
Estimate: £40 - £60