T-S 13J31.4
Copies of formularies for letters, by the head of the Babylonian academy (probably Saʿadya Gaʾon), who is residing in Baghdad. Contents include letters of greetings and thanks, a letter of condolence, a request for funds and instructions to send questions to the academy, and a detailed defence of the Rabbinic tradition against the Karaites. (Information from CUDL)