cover 1890 (29 July) cover to Hamburg bearing 1875-90 5pf. bright lilac-carmine (II printing) pairs (2) and 10pf. bluish green and carmine (V printing) pair, all cancelled by double-arc c.d.s. (M.13b, 14e); also 1879 "2½ PENCE/20 PFENNIG" on 1½d./10pf. postal stationery envelope to Hannover, cancelled by 1881 double-arc c.d.s., and 1888 20pf./2½d. (VII printing) on 1890 (March) cover to Hamburg (M.18g) similarly cancelled. An interesting trio