cover Landour: 1831 (8 Apr.) entire letter to Devon showing, on reverse across join, fine "LANDOUR" and "POST PAID" h.s. (HG 1) applied tête-bêche, alongside Calcutta G.P.O. Ship Letter d.s. and arrival c.d.s.; framed "INDIA LETTER/LONDON" and "MISSENT/TO/EXETER" h.s. on face. Photo