This is a highly unusual mourning cover from 1905 with black-bordered edges, originating in Brasso (then part of Austria-Hungary) and sent to Berlin, Germany. The envelope bears dual franking with Hungarian and German postage: two green 2 fillér Turul issue stamps and a German 10 pfennig Germania stamp. The cover displays numerous postmarks including Brasso SEP 17 05, Berlin transit on 20.9.05, and "Besetzt vom Postamte 50", indicating retention or redirection by the Berlin post office. The address side reveals heavy forwarding, with multiple handwritten re-directions and markings in ink and pencil, suggesting significant difficulty in locating the recipient. The envelope's intricate postal history, mixed franking, and use as a mourning cover make it an exceptional example of early 20th-century international mail handling within the Austro-Hungarian and German empires. Estimate "$140 – 180"