INDOCHINA FRANCESA. Ce.41. 1880 (July 4). Small envelope to FRANCE carried at Military Concessionary rate, franked by General Issues Type Sage 15c. blue tied by rare COCHINCHINE/SOC-TRANG cds with repeated strike below. Octagonal CORR. DĀ“ARMEES-SAIGON in black alongside (July 7). An extremely scarce cover. (Image1)