I found these while cleaning out my family's storehouse. They are a set of three mountain magazines ("Sangaku") published by the Yamato Mountaineering Club, which was located within the Nara Prefectural Office during the Taisho era (1912-1926). The set includes the first, second, and third issues. These books are valuable historical resources, offering insights into the nature, history, and culture of the mountains of Nara Prefecture at the time. They are over 100 years old, so they show signs of aging, but there are no issues with understanding the content. The back cover has the signature of the original owner. Please consider purchasing these, understanding that they have been stored at home for a long time.