During the eighteenth century, there was a revival of interest in medieval Japanese culture. As the demand for historical styles of armor began to increase among the wealthy lords, contemporary armorers studied the older forms and techniques in order to duplicate them. This example imitates a yoroi of the twelfth to thirteenth century. It is characterized by a helmet with prominent rivet heads and a wide, flaring neck guard and by a large cuirass with a separate panel on the right side, large square shoulder guards, and a deep four-sided skirt.