Gambia SG145c 1935 Silver Jubilee 6d Lightning Conductor on Cover

1935 (27 Dec.) envelope air mail registered from Bathurst to Scotland bearing 6d. block of four the lower right stamp showing variety lightning conductor neatly cancelled by despatch c.d.s the reverse showing AIR MAIL/ GAMBIA-ENGLAND cachet in violet fine and attractive. S.G. 145c (350 pounds as a used stamp). Grosvenor