Cylinder seal Near Eastern, Mesopotamian, Sumerian, Jemdet Nasr, 3100–2900 B.C.E. Museum of Fine Arts Boston.
Somehow it resembles the Squatting Man pattern, or the geometric. Here you have the negative:
The caption from MFA reads:
Abstract, geometric rendering of plant designs, horizontal line forming border at top and bottom.
By 1965: with Mrs. Oric Bates, Mrs. F. Carrington Weems, Mrs. Horace L. Mayer. 1965 given to the MFA by Mrs. Bates, Mrs. Weems, Mrs. Mayer, 10 November 1965.
Object Place: Mesopotamia
Legacy dimension: 24.9 mm x 10.5
Medium or Technique
Buff steatite with blue glaze