Ōyamazumi Shrine Treasure Hall

大山祇神社宝物館

Located in Ehime Prefecture, the Ōyamazumi Shrine Treasure Hall preserves and displays a significant collection of Japanese weaponry. Approximately 80% of all nationally designated treasures and important cultural properties categorized as weapons are held at this site. The collection includes representative masterpieces from various periods, including armor from the mid-Heian period, the Kamakura period, and the Warring States period.