The armor set under examination is a late Edo period suit of armor, reportedly inherited by the Sengoku family of the Izushi domain. It comprises a kabuto (helmet) and a gusoku (full body armor) with distinctive features that reflect both traditional craftsmanship and the aesthetic preferences of the period.

The kabuto is a 28-plate niju-hachi ken niho shiro daienzan hoshi kabuto with an iron rust finish. Its construction includes gold-copper ground plates at the front and back, with three shinodare (arrow-repelling plates) in front and two at the back. The kabuto’s elaborate hachiman-za (crest holder) is expertly crafted. Each rib, except for the front and back plates, is adorned with eight-point stars in a single row, while the koshimaki (lower rim) features a single star. This design faithfully reproduces elements found in Kamakura-period helmets.

The mabizashi (visor) is covered with decorated leather and fitted with a gold-copper kuwagata-dai (antler stand) featuring peony motifs. A bird-shaped maedate (frontal ornament) adorns the center, bearing the signature of the late Edo-period metalworker “Tenkodo Hidekuni” on its reverse.

The shikoro (neck guard) incorporates gold fittings with the Sengoku family’s “Eiraku-sen mon” crest on the fukigaeshi (turnbacks). The lower edge features openwork gold fittings with peony motifs, matching the kuwagata-dai. It is a three-tier kon-ito sugake manjū shikoro with iron black-lacquered plates and scarlet thread rhombus stitching.
The menpo (face mask) is an iron rust-finished Takemune menpo with side plates for securing cords. It includes a two-tier iron black-lacquered tare (throat guard) and an iron black-lacquered nodawa (neck guard), both adorned with peony-motif openwork fittings.

The dō (cuirass) is a Mogami-dō style with leather coverings and metal fittings around the edges. It is constructed of iron rust-finished plates laced with dark blue threads, featuring four hinges to create a five-section cuirass. Uniquely, it employs metal clasps for closure instead of the more common cord ties.

The kusazuri (skirt) is a five-tier, eight-section iron black-lacquered plate construction with dark blue thread lacing and scarlet rhombus stitching. Aoi-ba (hollyhock leaves) with the “Eiraku-sen mon” crest are attached.

The sangu (three-piece armor set) includes iron rust-finished tsubo kote (cylindrical arm guards) with embossed lion motifs, hakama-style kawara haitate (thigh guards), and tsubo suneate (shin guards). All feature green silk brocade with lion and peony patterns. Additional components include waki-date (side pieces) for the kote and iron rust-finished kōgake (foot covers).

The armor is stored in a single-load, wood-constructed, black-lacquered karabitsu (Chinese-style chest).