External cover title and title of the first text: 啟師破獄科 [qishi poyu ke].
Instructions about sending the messenger dragon to the Purgatory to wake up the deceased, imploring the gods (as the masters) to break the gates of the Purgatory, ensuring the salvation of the deceased.
Custodial history: Private collection.
Extent and format of original material: 1 volume of 13 folios.
Chinese era name (regnal year): ？甲子年四月初一日啟.
