Cover franked with 1931 100rs+50rs orange, 200rs+100rs green, 300rs+150rs black, green, yellow & scarlet, 400rs+200rs carmine, 500rs+250rs deep blue, 700rs+350rs black, green, yellow & scarlet and $1+500rs green, scarlet & yellow plus 1931 5000rs on 300rs light blue 'Zeppelin' overprint issue (SG 493/497, 499/500 & 509) tied by CURITIBA PARANA cds's dated 31.VIII.1931. Flown on the First 'Sudamerikafahrt' of 1931 with 'GRAF ZEPPELIN PRIMEIRO VOO BRASIL - EUROPA 1931' cachet in blue on front. Addressed to SWITZERLAND with Friedrichshafen transit cds on reverse. (Sieger #125B)