What medium is "Roundel with Crucifixion, the Virgin and Saint John"?

Roundel with Crucifixion, the Virgin and Saint John is Colorless glass, vitreous paint and silver stain.

Is "Roundel with Crucifixion, the Virgin and Saint John" in the public domain?

Yes, Roundel with Crucifixion, the Virgin and Saint John is in the public domain and available for free download under CC0 license.

This artwork was created 1480–1500.

Unknown Artist

1480–1500

Medium

Colorless glass, vitreous paint and silver stain

Dimensions

Overall Diam.: 7 9/16 in. (19.2 cm)

Classification

Glass-Stained

Culture

British (?)

Department

The Cloisters

Museum

Metropolitan Museum of Art, New York, NY

Credit

The Cloisters Collection, 1932

Accession Number

32.24.19