Tonashi Gate, Matsuyama Castle — 松山城 戸無門

Hasui depicts the Tonashi-mon (戸無門, literally "gateless gate") of Matsuyama Castle, one of only twelve original surviving castle keeps in Japan, completed in 1627 on Mount Katsuyama in what was then Iyo Province, present Ehime Prefecture on Shikoku. The Tonashi Gate, named for its absence of hanging doors, is one of the secondary defensive gates within the castle's complex approach path system — a series of enclosures designed to slow and expose attackers ascending the hill. Hasui's composition likely takes a low viewpoint looking up along the stone-paved approach, framing the gate's timber structure and stone wall through flanking pine trees, a compositional device that emphasizes the architectural mass while providing organic counterpoint. The strong horizontals and verticals of fitted stone masonry and timber construction required the woodblock carver to render precise geometric forms alongside the organic complexity of pine branches, creating the tonal contrast that gives castle architecture prints their characteristic graphic force.