What medium is "Glass cameo with portrait head of Alexander the Great"?

Glass cameo with portrait head of Alexander the Great is Glass, blue.

Is "Glass cameo with portrait head of Alexander the Great" in the public domain?

Yes, Glass cameo with portrait head of Alexander the Great is in the public domain and available for free download under CC0 license.

This artwork was created 1st century BCE–3rd century CE.

Unknown Artist

1st century BCE–3rd century CE

Medium

Glass, blue

Dimensions

Length: 11/16 in. (1.8 cm)

Classification

Gems

Culture & Period

Roman · Late Republican or Imperial

Department

Greek and Roman Art

Museum

Metropolitan Museum of Art, New York, NY

Credit

Gift of Miss Helen Miller Gould, 1910

Accession Number

10.130.1400