cover -- a fine example (No. 977) cancelled with central "Rabaul" h.s. in violet used with New Guinea (6mm. setting) 1d. on 5pf. (marginal), 2d. on 10pf. and 2d. on 20pf. on 1914 local philatelic registered envelope, each tied by "RABAUL/Oct 17 1914" h.s. in violet. B.P.A. Certificate (1967). Photo