First, the haiku poet's name is "Getsuyo" (月舫). Next, there are numbers from 1 to 20. "15" indicates the number of the Tokiwa collection published. This is the order in which the 20 volumes were published. The place of publication is "Nagaoka" (長岡). ■ Chazan Matsuoka, who settled in Echigo-Mitsuke, continuously published Umegusazoshi and Tokiwa collection annually for 29 years, from Tenpo 3 to Bunkyu 1. These haiku books contain not only the poems of haiku poets from the vicinity of Mitsuke but also from various parts of Echigo and throughout the country. He was called "Chazan in Hokue" (北越に茶山あり), 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 the images and make sure you understand and agree before purchasing. Thank you for viewing.