imperial genealogy · historical records
imperial sacrificial document
- 玉 nounjadeprecious stone that is hard, translucent, and lustrous, including both nephrite and jadeite; used for jewelry and carving
- 牒 nounofficial document; writing slip(bound form) an official document, certificate, or dispatch; a thin wooden or bamboo slip used for writing in ancient times; (by extension) books or records