When was "Portrait of Christ" created?

This artwork was created early 20th century (original dated late 5th–early 6th century).

What medium is "Portrait of Christ"?

Portrait of Christ is Tesserae, glass in wooden frame.

Yes, Portrait of Christ is in the public domain and available for free download under CC0 license.

Unknown Artist

early 20th century (original dated late 5th–early 6th century)

Medium

Tesserae, glass in wooden frame

Dimensions

Overall: 33 7/16 x 32 15/16 x 1 3/8 in. (85 x 83.7 x 3.5 cm)

Classification

Reproductions-Mosaics

Culture

Byzantine

Department

Medieval Art

Museum

Metropolitan Museum of Art, New York, NY

Credit

Johnston Fund, 1924

Accession Number

24.144.6