Modelbooks of the Accumulated Calligraphy Cliff (Jishuyan), Vol.20: Copy of Jin-Dynasty Wang Xianzhi's Model Calligraphy “Yatou Medicine”(Yatouwan tie)

法書

（臨王獻之鴨頭丸帖）鴨頭丸。故不佳。明當必集。當與君相見。（自識）此大令真跡。有明萬曆間。藏新安吳用卿家。刻餘清帖中。宋思陵為之贊。題作右軍。柯九思諸公遂不敢更有異論。恐俱誤。