Issues during Boxer Rebellion in Petschili, 10 Pfg dark carmine-red single franking on picture postcard to Marburg a. d. Lahn, forwarded to Essen, neat single-circle TIENTSIN 23 12 01 DEUTSCHE POST a, also unit mark S. B. OSTAS. ERSATZ. BRIGADE III. BAT. 3. INF.-REGIMENTS, Marburg and Essen arrivals, age and use wear typical of period