200rs blue postal stationery envelope (H&G B20) with boxed 'Dr A Bravo, Oculista ouvido e sangue Cura as molestias graves com RADIO ACTIVO' senders cachet in purple on reverse with triangular P.URBANA PORTO ALEGRE (R.G. DO SUL) cancel dated 7 JAN 1920 on front. Addressed to 'The Radium Company of Colorado, New York'.