Three beads from a court necklace 17,4 x 20,3mm. The bead on the left has a "T" formed drilled hole. They are from the Qing dynasty which ended in 1911.
These are mentioned in R.K. Liu- Collectible Beads, pag 68 and Fenstermaker-The Chinese Bead, plate IV.
Does anyone know more about place and time of manufacturing?
Thanks, hans