This is a political satire and the earlier of 2 selections conveyed under the title 'Yan zi fu'. Continuation of Or.8210/S.6267[G]. JianTao_1868 dates the composition of the text to ca. 721-736 and tabulates variant readings in this ms. and the 4 Pelliot mss. Additional studies cited in SSKB:
SSKB4.34.
(JB)