1. Or 6972 Reference (shelfmark): Or 6972 Title: Menggu zi yun. Meng ku tiu yun. 蒙古字韻二卷. Scope & Content: Menggu zi yun. Meng ku tiu yun. A Yuan Manuscript by Zhu Zongwen. Collection Area: Oriental Manuscripts Languages: Chinese Date Range: 1308 Extent: 1 volume (66 folios)