Zigzag ladder designs forming two triangles

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between 3100 B.C. and 2900 B.C.
black serpentine
48 x 13.5 mm
Morgan Seal 35
Provenance: 
Acquired by Pierpont Morgan sometime between 1885 and 1908.
Notes: 

"[35] shows patterns probably derived from weaving and mat plaiting." Porada, CANES, p. 7

Summary: 

Zigzag ladder designs forming two triangles, three drillings in each.

Place: 
Southern Mesopotamia.
Classification: 
Department: