1930, South America flight, Brasil. Post, Rio de Janeiro -Recife - Lakehurst, photo picture postcard "Nature and technique of the railroad between Curityba-Paranagua" with Zeppelin stamp 5000 R. green and handing in for transport CURITYBA 22. May via Recife and Friedrichshafen to Berlin with American inventory stamp and German airmail inventory postmark from Berlin, legitimate postcard with text and in fact scarce place of posting!