Basutoland SG12f 1935 Silver Jubilee 2d Diagonal Line by Turret on Cover

1940 (6 Feb.) envelope registered from Maseru to England bearing set of four the 2d. showing variety diagonal line by turret cancelled by despatch c.d.s. and leaving clear the variety. A fine cover. S.G. 11/14 12f (cat 275 pounds as a used stamp). Grosvenor November 2007