Stratified eye

365EM
Stratified eye bead
7-9 century 

Four eyes each composed of four layers (alternative white/ brown with a blue center).
Diameter: 1.2 cm
Height:    0.8 cm
Intact, very good condition.

For similar published beads see:

-  V. Kovalevskaya, Komputernaya obrabotka massovogo arhaeologicheskogo materiala is rannesrednevekovih pamyatnikov Evrasii, Moscow, 2000,  #157, 161.

-  A. Panini, Middle Eastern and Venetian Glass Beads, Skira, 2007, p. 45.