1930 (9 Sep) Posted at Graf Zeppelin to Peiping, f.w. German 2m, tied by Graf Zeppelin cds. Transit Moscow (11 Sep), Manchouli (19 Sep).
1930 (9 Sep) Posted at Graf Zeppelin to Peiping, f.w. German 2m, tied by Graf Zeppelin cds. Transit Moscow (11 Sep), Manchouli (19 Sep). Arrived Peiping (22 Sep). Example of USSR airmail service after Sino-Soviet conflict
