When was "Button or Bead or Spindle Whorl" created?

This artwork was created 9th–10th century.

What medium is "Button or Bead or Spindle Whorl"?

Button or Bead or Spindle Whorl is Jet; incised.

Yes, Button or Bead or Spindle Whorl is in the public domain and available for free download under CC0 license.

Unknown Artist

9th–10th century

Medium

Jet; incised

Dimensions

Ht 3/8 in. (1 cm) Diam. 1/2 in. (1.3 cm)

Classification

Stone

Department

Islamic Art

Museum

Metropolitan Museum of Art, New York, NY

Credit

Rogers Fund, 1940

Accession Number

40.170.379