Cameroon: Federal Republic: 1961 (Oct. 13) unusual airmail envelope sent by Lionel Horner of the P&T Division in Buea to former South Georgia police constable Barry Goss in Essex, franked by Federal Republic 1/2d. on 1f. (2), 11/2d. on 5f. (2), 2d. on 10f. and 3d. on 15f. (3), unusual.