cover 1916 (29 Feb.) stampless envelope (soiled) to Moschi bearing a faint strike of "Frankiert/mit 7½ H" h.s., company cachet, Tanga coat of arms h.s. and c.d.s., arrival backstamp; 1916 (7 Aug.) cover from Morogoro to Dar-es-Salam bearing a fine strike of "Frankiert/mit 7½ H" h.s. in violet plus post office h.s. despatch c.d.s. on face and arrival backstamp; slightly reduced at left, fresh