Astrological observation

Instructions for star gazing to predict the weather; lunar and solar eclipse observation to predict events occurring during the year. 84 pages. Cham manuscript bound by threads; cover using handmade paper; written in Chinese ink on Chinese paper folded in half; Akhar Thrah script. Size: 22cm x 20cm. A page is blank (082); 2 pages are torn off (009, 010), Some pages were torn down in the lower corner. The condition of the manuscript is deteriorating.