Brazilian 50rs blue on brownish yellow 'Sugarloaf' postal stationery card (H&G 29a) datelined 'Livramento 12 Juillet 906' on reverse posted in Uruguay with added strip of three 1904 1c green 'Cattle' issue (SG 252) tied by two strikes of ESTAFETA AMBULANTE A34 cds dated 15 JUL 1906. Addressed to SWITZERLAND with MONTEVIDEO transit cds and Swiss arrival cds on front. A very unusual TPO use.