External cover title: 壹部三官經 [yibu sanguan jing ]. A scripture about the function and the merit of Sanguan (the Three Officers, including Heaven, Earth and Water). Date(s) claimed in the manuscript: 太歲壬戌年四月廿六日終筆. Calendar note: Stem-branches system or 60-years cycle: Two plausible dates: 1922 ...