1914, 2 Cents on 5 Pfg dark green vertical pair, definitive issue 1905, multiple franking on letter to Breslau, single-circle PEKING 3 8 14 DEUTSCHE POST. Literally sent on first day of World War I; two days earlier, on 1.8.1914, German Reich declared war on Russia, excluding overland carriage via Siberia. Next day, 4.8.1914, Germany declared war on France; thus probably carried by sea on a neutral-flag vessel. Exceptionally unusual postal-history cover, its value in no way reduced by missing back flap