"Excerpts from Daoist scriptures Ofuchi_1978:
349-51 suggests that this ms. is from the same roll as P.2459, P.2469, P.2725, and P.3652. His judgment is based on their format, calligraphy and paper type. These six fragments cite a number of works central to the Shangqing and Lingbao codifications of the fourth century. A citation from a 'Zhi ji ben ji jing' (see Or.8210/S.1246) suggests that this was compiled sometime after the first decade of the Tang dynasty (618-907)."
(JB)