The two superimposed scenes contrast dramatically with one another.  In the lower spiral (Scene 141), Trajan receives Dacian noblemen who entreat him through gestures and perhaps gifts of gold.  The futility of the petition is anticipated above, where the severed head of Decebalus is presented to an assembled group of Roman soldiers.Compare Cichorius Pl. CIII and CVII and Coarelli Pl. 167 and Pl. 173.  From the Column in situ. RBU2013.3770.