When was "Bust of a Roman Emperor, possibly Galba" created?

This artwork was created probably mid-16th century.

What medium is "Bust of a Roman Emperor, possibly Galba"?

Bust of a Roman Emperor, possibly Galba is Agate.

Yes, Bust of a Roman Emperor, possibly Galba is in the public domain and available for free download under CC0 license.

Unknown Artist

probably mid-16th century

Medium

Agate

Dimensions

Overall: H. 2 7/8 x W. 2 7/16 x D. 9/16 in. (7.2 x 6.3 x 1.4 cm)

Classification

Lapidary Work-Gems

Culture

Italian

Department

European Sculpture and Decorative Arts

Museum

Metropolitan Museum of Art, New York, NY

Credit

The Milton Weil Collection, 1938

Accession Number

38.150.7