Basutoland SG13g 1935 Silver Jubilee 3d Dot to left of Chapel on Cover

1935 (16 Dec.) envelope air mail registered from Maseru to England bearing set of four the 3d. showing variety dot to left of chapel each cancelled by despatch c.d.s. and leaving clear the variety. A fine and scarce cover. S.G. 11/14 13g (cat 450 pounds as a used stamp). Grosvenor November 2007