Yuan Dynasty Seal, Old Seal Material, Carving, T-style Seal Carving, Antique, Chinese Antique Art, Unknown Details, Antique Copper Artifact, Copper Seal, Seal, Old Family Collection This is a collection my father spent many years gathering. Most of these valuable items were collected over 70 years from Taiwan, Hong Kong, and Europe and America. I am currently listing them while organizing the collection. Total weight: 11g Dimensions: Size: Approximately 22x4mm Item number: TAQ31a2