This armor is from the collection of treasures of the Kii Tokugawa family, established in the seventeenth century. The collection consisted of arms, books, and, particularly, ceramics for tea practice. The treasure store was later enhanced by the great daimyo collector Tokugawa Harutomi (1711-1852), a keen adherent of tea practice, but was dispersed from time to time during and after the Meiji period (1868-1912). This armor was acquired by the Idemitsu Museum of Arts. It is a fine example of an early Edo-period (1600-1868) gusoku of the highest quality for a daimyo and in quite original and fine condition. Immediately striking is the gilt maedate forecrest in the form of a praying mantis, a rare motif, to be compared with that of the helmet originally in the early collection of a daimyo of Kaga province (Ishikawa Prefecture) exhibited in "Art of the Samurai: Japanese Arms and Armor, 1156--1868," The Metropolitan Museum of Art, New York, 21 October 2009--10 January 2010.