Iceland flight 1931, Icelandic post, photo postcard with local topic in extreme rare variety with imprinted note "Med Loftskipinu Count Zeppelin", registered card from Reykjavik 30.6. with 30 A and 1 Kr Zeppelin, large cancellation type, flight stamp and arrival Friedrichshafen 3.7. on face, further to Brussels as scarce abroad destination, superb