Eguchi Kiyoshi (Kan) 江口渙 and Kishi Yamaji 貴司山治, editors. Senki 36 Nin Shū 戦旗36人集.
Kaizōsha 改造社.Tokyo. Showa 6 昭和2年 . 19 x 13cm softcover book bound Western style opens Japanese style and has 488 pages of proletariat writing in Japanese text. Edited by novelist Eguchi Kiyoshi 江口渙, later changed to Eguchi Kan, (1887-1975) and novelist and playwright Kishi Yamaji 貴司山治 (1899 - 1973). Title page, with a red hanko and  page introduction by Eguchi dated 1930. A list of the 36 authors with the titles of their essays and poems follows on p. 5-8. Page numbers begin on page 5 and blank pages and title pages between essays are counted within the pagination but not numbered. There is sheet music for a song on p. 433. At the end of the book is a colophon with a laid-down seal in bright green and red and  pages of publisher book advertisements. Cover art is likely done by avant-garde artist and critic Murayama Tomoyoshi 村山知義 (1901-1977).
A compendium of essays and verse by authors who appeared in Senki 戦旗 magazine. Senki 戦旗 (The Battle Flag) was published at the end of the leftward drift of the avant-garde, when such artists, writers and critics as Yanase Masamu & Murayama Tomoyoshi [earlier both members of the MAVO movement] were leading the charge. Soon enough, as the troubles with China over Manchuria, North China and Shanghai came to dominate political discourse, they were silenced, jailed, or pushed aside. The magazine was published from 1928-1931.
Cover has been repaired at binding with matching bookbinding tape on spine, overlapping onto front and rear wrappers, partially over title. Wear to wrappers with foxing to covers and throughout. Chipping at lower spine. Title is brushed on spine.