Mixture franking consisting of 4 Din. with 16 Din. on a registered airmail foreign letter of the 2nd weight class, over 20 g to 40 g, to Colmar in Alsace, with departure stamp BEOGRAD 1 / 19 from June 21, 1944, and registered stamp Beograd 1, as well as with censorship seal of the foreign letter examination office Vienna and arrival stamp KOLMAR from May 29, 1944;" Photographic finding by Brunel "The envelope was slightly improperly opened, otherwise the cover is in good condition. "