This is a typical example of a wartime Revolutionary Army (KMT) field diary. These were written by hand, sometimes by a clerk, and then signed or stamped by the officer who determined its content. Sometimes these were sent to a government archive to provide study materials for military strategy, but mostly they were never read by anyone but the original authors. Some archived diaries were mimeographed, but many more were handwritten like this one, and most suffered under the new regime after 1949.
