Length 38.4 mm.
Weight 4.79 g.
Weight 4.79 g.
Sumitomo Group /住友グループ/ is a Japanese corporate group and keiretsu that traces its roots to the zaibatsu groups that were dissolved after World War II.
The Meiji Restoration allowed Sumitomo to import and utilize Western machines and techniques in its mines. Sumitomo soon branched out into even more business areas entering the machine and coal industries, as well as the forestry, banking and warehousing businesses becoming a zaibatsu, or business conglomerate.