1929, registered letter from Braunschweig on July 27th to Porto Alegre, with ship mail to Brazil, and from Rio with Condor airmail, bearing Condor stamps of 2000 R and a registered surcharge stamp of 400 R, already cancelled in Hamburg on July 29th, slightly creased, on the reverse side arrival at Condor agency Porto Alegre on August 26, 1929, very rare combination.