1934, 2nd Südamerikafahrt, on face with 1 RM zeppelin and 25 Pfg Hindenburg as well as back with 50 Pfg golden eagle se-tenant (two times W22) correctly stamped post-paid aerogram to Buenos Aires. Collected there after 6 days and the due storage charge with argent. Gives a receipt for 10 C. stamp, this devalues with cancel "Buenos Aires POSTE restante". Envelope small defects. Rare!