The were several artists of the Bushu Ito school who signed their work Masakuni, using these kanji. The first worked in Hizen circa 1675. The second moved to Odawara and then to Edo, circa 1700. Another worked circa 1750 and specialized in saw-cut thread designs. There were at least five other artists who worked during the Edo period with this name but who were neither Ito school artists nor residents of Edo. The present tsuba cannot be attributed to any of these artists as it was made late in the Edo period.