Four snuff bottles

Four snuff bottles
19th/20th century
Including two mother-of-pearl bottles: one decorated with a dragon and phoenix, the other in a gourd form carved in relief and undercut with additional gourds and leafy tendrils; the third a rose quartz bottle, carved with a basket-weave pattern; the fourth an amethyst bottle with a raised circular panel to each main side.
2 1/16 to 2 1/2in (5.4 to 6.4cm) high