Unused on cover / entire letter 1915 envelopes (2) to U.S.A. showing Types HS2 and HS3, and 1917-18 envelopes (5, one a stationery type and one to Gambia) and postcard, each with Type HS4, all with despatch c.d.s. on face; also a selection of loose adhesives with Types HS1, 2 or 4