What medium is "Dish with an inscription recording a ritual event"?

Dish with an inscription recording a ritual event is Greywacke.

Is "Dish with an inscription recording a ritual event" in the public domain?

Yes, Dish with an inscription recording a ritual event is in the public domain and available for free download under CC0 license.

This artwork was created ca. 3100–2650 B.C..

Unknown Artist

ca. 3100–2650 B.C.

Medium

Greywacke

Dimensions

Diam. 39 cm (15 3/8 in.)

Classification

Dish, ritual event

Period

Predynastic, Naqada III–Early Dynastic Period

Department

Egyptian Art

Museum

Metropolitan Museum of Art, New York, NY

Credit

Purchase, Dr. and Mrs. Edmundo Lassalle Gift, 1968

Accession Number

68.15