Watch List notes:

British coins, The Sovereign Mintmark Collection, comprised of sovereigns (7): George V, 1911S; 1911C; 1912; 1912M; 1918I; 1920P; 1928SA; bare head l., rev. St. George and the dragon (S.4003; 3997; 3996; 3999; 3998; 4001; 4004), in case of issue with certificates, about extremely fine (7)
One of only 958 sovereign sets issued.