100r dull violet on grey white 'Exposition' postal stationery view card (H&G 43) with view: 'Rio de Janeiro: Canal do Mangue' used with added 1920 100rs yellow orange 'Industry' issue and 1937 300rs green & red orange (SG 404 & 603) tied by CORUMBA cds's dated 7 ABR 1938. Addressed to SWITZERLAND with full commercial message on reverse. Light stain on front.