21 glass was a staple at court and may not have been produced elsewhere at this early stage of production. The simple faceting may derive in part from European decorative methods but here it also derives from the circular panels of courtly decoration, which are commonly found, for instance, on Kangxi enamel-painted metal bottles. Although the idea of simple raised panels may have been encouraged by the new faceting techniques, it is unlikely that bottles such as this would have been considered European looking at the time. There are one or two glass snuff bottles bearing credible Yongzheng reign marks. Figure 16 is in ruby-red glass and of the typical, faceted shape that remained popular throughout the dynasty, although evolving formally. This example shows that it was already refined to this standard shape by the Yongzheng reign. It is an interesting feature of this bottle that the red is rather flawed, with streaking and bubbles of various sizes, which is also a feature of other wares with Yongzheng reign marks in this color. This need not mean, however, that all Yongzheng glass was similarly flawed. Another of the same shape is in purple glass, a color we know from the records was made at court during the reign ( fig. 17 ). It also bears a Yongzheng reign mark. Although I have not been able to examine it, it is likely to be genuine. Based on these two, we can attribute other, non-marked glass bottles of the same formal range, many with similarly wide mouths, to the same sort of period. Figure 18 is in Imperial yellow glass, a color we know was made prior to 1702 from Wang Shizhen ’ description. Figure 19 is of a particular shade of turquoise-green that is known in a number of vessels other than snuff bottles with Yongzheng or Qianlong marks. The Yongzheng Emperor is on record in 1732 (sixth month, twentieth day) as being dissatisfied with the color of one turquoise glass snuff bottle, ordering it broken and recycled. 16 Figure 20 is of orange realgar glass with the rather even coloring apparently popular at court during the Yongzheng and early Qianlong period, while figure 21 is a very rare example in sapphire-blue with aventurine glass fragments rolled into the surface proving, incidentally, that this particular bottle, unlike figure 20 , was blown into an already faceted mold. We can also attribute other plain bottles to the same broad period spanning the Yongzheng reign, Fig. 20. Orange realgar faceted glass bottle, 1700–1770. Bloch Collection. Fig. 21. Rare blown sapphire-blue faceted glass bottle with aventurine glass fragments, 1720–1760. Bloch Collection. Fig. 17. Purple faceted glass bottle. Fig. 18. Imperial yellow faceted glass bottle, 1700–1770. Bloch Collection. Fig. 19. Turquoise-green faceted glass bottle, 1710–1770. Bloch Collection.