5.3 cm (2 1/16 in.)
Marble
4th century CERomanLeaded brass
1st century BCE-1st century CERomanLapis lazuli (?)
1st-3rd century CERomanItalian marble (?)
2nd century CERomanLeaded bronze
2nd-3rd century CERomanLeaded bronze
2nd century CERomanTerracotta
RomanGreek mainland marble
2nd century CERomanTerracotta
RomanMarble
3rd century CERomanLeaded bronze
2nd-3rd century CERoman