What medium is "Ring with snake's head and tail twisted to form bezel"?

Ring with snake's head and tail twisted to form bezel is gold.

Is "Ring with snake's head and tail twisted to form bezel" in the public domain?

Yes, Ring with snake's head and tail twisted to form bezel is in the public domain and available for free download under CC0 license.

This artwork was created A.D. 1st century.

Unknown Artist

A.D. 1st century

Medium

gold

Dimensions

Diam: 2.1 cm (13/16 in.)

Classification

Ring, snake's head terminal

Period

Roman Period

Department

Egyptian Art

Museum

Metropolitan Museum of Art, New York, NY

Credit

Rogers Fund, 1924

Accession Number

24.2.9