cover 1917 (1 July) envelope registered from Tandala to Rhodesia, bearing 4d. cancelled with F.P.O. 3 c.d.s. and with manuscript registration mark, and 1919 (21 Feb.) envelope registered from Zomba to Bloemfontein, bearing 1d. block of four with four strikes of the F.P.O. 9 c.d.s. and showing "A.P.O. ZOMBA." h.s. at left