c. 400 CE-1900
actual: 10.2 cm (4 in.)
Bone
RomanPentelic marble
3rd century CERomanLapis lazuli (?)
1st-3rd century CERomanMarble
2nd century CERomanAlabaster
1st century BCERomanLuna marble
3rd century CERomanMarble
4th century CERomanCrystalline Greek marble, perhaps from Naxos
1st century BCE-2nd century CERomanMarble
2nd-3rd century CERomanAsia Minor marble
1st-2nd century CERomanMarble
1st-2nd century CERomanBone
1st-3rd century CERoman