"Puteoli Graffito"

Images such as this shed light on the reality of Roman crucifixion in practice and share a few features in common with other depictions: The crosses are in the shape of a capital tau, or Greek letter T; the Puteoli graffito  seems to depict a figure who have been whipped or flayed;the figure appears to be nude, and the feet seem to be apart and possibly nailed separately (unlike the overlapping feet of Jesus in popular portrayals). That last feature is supported by the well-known ankle bone of a crucified man discovered in Jerusalem, which still had an iron nail embedded in its side.