An Ọka [Awka] blacksmith, nnẹ ụzụ, and his nwa ụzụ, an apprentice blacksmith, photographed by G. T. Basden, early 20th century.    Awka in Anambra State, Nigeria, is a big name for blacksmithing, which is the art of turning all types of things into iron; they are truly masters in iron works. Awka blacksmiths have been into…