The Flagellation c. 1455 Oil and tempera on panel, 59 x 82 cm Galleria Nazionale delle Marche, Urbino
The interior scene is illuminated from the right while the "modern" outdoor scene is illuminated from the left.
Originally, the painting had a frame on which the phrase "Convenerunt in Unum" ("They came together") was printed.
The painting is signed under the seated emperor OPVS PETRI DE BVRGO S[AN]C[T]I SEPVLCRI – "the work of Piero of Borgo Santo Sepolcro", another name by which the artist is known.
Much ink has been spilt discussing this picture, what it represents and what it means.
Reference is made to the following:
The Piero Project VRML Page: http://etcweb.princeton.edu/art430/pierovrml.html