Kono Haruaki has roots in the Yokoya School having studied under Yanagawa Naoharu. He originally used the name Haruto which he later changed to Haruaki in the Bunka era. He achieved the Hokkyo status around 1807, and subsequently became Hogan soon thereafter.
While Haruaki was a contemporary of Goto Ichijo and a representative craftsman of Edo metalwork, he traveled the country producing works in Tohoku and northern Kanto in the Bunsei era, and spent his later years in the 1850s in the Echigo region.
This Kozuka is a remarkable depiction of a Hototogisu cuckoo bird flying over Mt. Fuji executed in Sukidashi Takabori on a textured Ishimeji Sudo base.