Melon beads

221NA
Glass necklace 
Date: 1 century BC to 1 century AD
Roman 

Composed of 13 large compressed spherical white glass melon beads and 10 compressed globular white glass beads, all graduated in size. Interspersed with 24 blue glass compressed spherical beads of the same period.
Intact, very good condition.

Max diameter of the largest bead: 20 mm
Height: 17 mm

Necklace is 19" ( 48.3 cm) long

For similar beads see:

-Alexeeva E.M. Antichniye busi severnogo prichernomoriya, Academy of Science, Moscow, 1978, table 33: 48