Lourenço Marques 1899: 5 r. on 10 r., 25 r. on 10 r., 50 r. on 30 r. and 50 r. on 800 r. green & brown, both halfes of each value; used on registered cover to Lisbon tied by three strikes of "Correio / Lourenço Marques" datestamps (April 27) and by framed registration cachet in black. Reverse with Lisbon arrival (May 24). File folds but a rare issue on a genuine cover (Scott 53/56). (Image 1) (Image 2) (Image)