First, the haiku poet's name is "Sozan," followed by the numbers 1-20. "12" indicates the order in which the Tokiwa collection was published, with 20 volumes in total. The place of publication is "Kamo." ■ Chazan Matsuoka, who settled in Echigo-Mitsuke, published the Umegusa-shi and Tokiwa-shu collections annually for 29 years, from Tenpo 3 to Bunkyu 1. These haiku books feature not only the haiku poets from the vicinity of Mitsuke but also poets from all over Echigo and the entire country. He was called "Chazan of Hokue," and Chazan's name became known not only in Echigo but also throughout the country. Since the images are everything, please take a good look at them and make sure you understand and are satisfied before making a purchase. Thank you for viewing.