SCARCE COVER: Envelope (centre fold) printed with ' On His Britannic Majesty's Service', and ' British Consulate General, Liberia', to an address in the Cameroons bearing a 1909 Liberia blue 5 cents pictorial of the gun boat 'R.L.S.Lark' tied with a Liberia cds 15 Nov 1914 and back stamped Freeport, Sierra Leone 27 No 14. (Image)