Mainichi Komyunikeshonzu, 1983-1986. Special emphasis is on economics and industry, but also includes social conditions, labor, etc. Collection of articles taken from Japanese newspapers during the early Showa period up to the end of the war. Organized by topic. Useful for getting an overview.
Volumes are in chronological order.
Covers entire Meiji period. 15 is cumulative index in gojuon order. Asahi, Yomiuri, Mainichi, Sankei, Nikkei. Compiled by Ishida Bunshiro. Single vol. of elected newspaper articles covering major events, organized by topic.