*k T-S AS 149.108
*t Letter; document
*s 8.9 x 10; 5 lines + marginalia (recto); 4 lines (verso) 
*m Paper; 1 leaf; torn, holes, rubbed, faded
*l Judaeo-Arabic
*c Recto: mentions the name of Abū l-Ḥasan b. Abū l-[...]. Below in a different hand and ink is the address of a letter to be sent to Fusṭāṭ. Verso: document, possibly part of the letter of which the address is on recto. 
*e