Untitled multiple-text manuscript

This leporello multiple-text manuscript is written with black ink in greyish khòi (sa?) paper.The texts deal with astrology, the removal of one's bad luck with a ceremony, and the reckoning of time. The manuscript is written in Tham-Lao script and contains many (mostly smaller) drawings, magic squares and diagrams. 69 folios. Script: Tham-Lao; Tham-Lue.