You Collection, Middle Volume Radical: Shell (bèi) Character: dan Kangxi stroke count: 19 Page 1212, Entry 17 Broad Rhymes (Guangyun) and Collected Rhymes (Jiyun): Pronounced tan. Meaning to pay in advance when purchasing items. Jade Chapters (Yupian): Defined as paying money beforehand. Mi Fu, History of Calligraphy (Shushi): Records that during the Sui and Tang dynasties, book collections utilized gold-inscribed silk bindings. Note: The term refers to the silk or damask attached to the beginning of a scroll. Also known as a jade pool, with varieties including ball-pattern brocade bindings, pavilion-pattern brocade bindings, and board-game pattern brocade bindings. Broad Rhymes (Guangyun) and Collected Rhymes (Jiyun): Pronounced tan (falling tone). Meaning is the same. Also written in a variant form.