A treatise on hiddent things including discussion of the jinn (spirits) and magic squares.
Page size (cm) (width and height): 11.5 x 16.5; Text box size (cm): n/a; Lines per page: n/a.
Condition: water staining; no text loss.
Marginal annotation in different hand; brown ink.
Complete.
Calligraphic style: suqī.