Mosaic bead

1MSM
Byzantine - Islamic- Viking glass bead
7-9 century
Mosaic cane glass

Perforated section of premanufactured mosaic cane, consisted  of multiple green and yellow single glass canes.
Height 14 mm. Diameter 11 mm

For published similar beads in museum collections see:

-H. Arbman, Arbman, Holger (1940) Birka 1 Die Graber: Tafeln. [The Graves: Plates] Birka, Kungliga Vitterhets Historie och Antikvitets Akademien, Taf. 122, 12-f.
-  V.Kovalevskaya, Komputernaya obrabotka massovogo arhaeologicheskogo materiala is rannesrednevekovih pamyatnikov Evrasii, Moscow, 2000, p.93 #225.