Latvia 1914 backside of cover. Front: Russian 3+1 Kop. perf.11 and 7+1 Kop. perf.13 War Charity issues on cover tied by machine cancel RIGA 18.12.1914 to Glimminge, Sweden. Opened by Russian censor in Petrograd, backside purple oval marking.
Russian Government
1914-12-18
Scan of original