Arch of Constantine. Detail of "liberalitas" attic panel showing evidence of removal of Commodus, who probably sat in an adjacent sella curulis like his father, Marcus Aurelius (who has been recarved into Constantine in this panel). A fragment, likely the remains of his Commodus's foot appears on the podium (yellow arrow). Further evidence of recarving of this part of the relief is the fact that the bottom half of the toga of the man standing on the step is carved in lower relief than that of his upper half. This difference is not easily explained by differential weathering of the panel.