This model of Plato is a 3D scanned model of "an Ancient Greek, marble sculpture created in 370 BC, housed in the Ny Carlsberg Glyptotek. The work is a copy after a sculpture by the Greek artist, Silanion. He was commissioned by the Persian general Mithridates to create this idealized portrait for the Academy of Athens."

Special thanks to Scan the World and the Statens Museum for Kunst (SMK), which is the National Art Museum of Denmark. This work is in the public domain and can be found at the link here.