cover -- 1911 (18 Aug.) envelope to Peking, bearing pair of 1900 3p. tied by good strikes of "F.P.O.NO.6", flap of envelpoe bears the emblem of the Inniskilling Fusiliers; also 1923 (18 July) ½a. stationery envelope with additional K.E.VII ½a. and 3p. (on reverse) cancelled by fair strikes of "F.P.O.NO.6", addressed to India and without and Base Office markings and a late example of this office