"One of a putative exchange of letters whose inspiration rests on historical accounts concerning Li Ling 's (d. 74 BC) efforts to persuade Su Wu (d. 60 BC) to join him in supporting the Xiongnu. Whitaker_1953 discusses versions of the letters in published anthologies and notes 4 copies, 2 of which were also rendered by students with P.2498 dated 928. LiDanhe_1988 provides a critical edition based on all 5. Other studies cited in SSKB:
SSKB4.50-1."
(JB)