The title of the manuscripts appear in the colophon is Abhithamm 7 Khamphi. The content mentions about the description of Puggala Paññatti (descriptions of Individuals) which is the fourth book of the seven books of Abhidhamma.
Colophon:
Folio 38 on the recto side: In Culasakkarat 1 hundred and 99 (corresponding with CS 1199), a hwai san year, the third day of the week (Tuesday), a hwai sanga day, the writing of this manuscript was finished at the time of the morning drum (between 7.30–9.00 o’clock). Chao Sim had the ardent religious faith to sponsor the making of this manuscript entitled Abhithamma 7 Khamphi fascicle 4 to support the Teachings of the Buddha. Nibbāna paccayo hotu no dhuvaṃ dhuvaṃ (May this be a condition for us to reach Nirvāna, certainly).