Printed 'VARIG Primer Voo Porto Alegre - Uruguaiana' horseman & airplane envelope franked with 1932 200r rose red national issue & Varig 1932 500r blue on straw (SG 313 & Sanabria #V34) tied by PORTO ALEGRE cds dated 25 JUL 1932. Addressed to URUGUAYANA with arrival cds in purple on reverse. (Muller #174, rated 1000pts)