This right-hand wing, once part of a statue of Victory, is represented in a resting position. Finely crafted details, in particular the meticulously-rendered layers of plumage, have been obtained using a burin. The realism of the piece and the technique used in its creation date it to around the First Century CE. Along with other sculptures from various periods, this work was reused in the building works ordered by emperors Valentinian and Valens between 365 and 367 CE on the bridge which connected the left bank of the Tiber with Trastevere.
Built originally in the Second and Third Century CE, the bridge was adorned with a triumphal arch and bronze sculptures along its upper section. Inscriptions commemorating the five and ten-year anniversaries of the two emperors ran along the outer parapet, in order to be easily readable.
The bridge was completely rebuilt by Pope Sixtus IV in 1473.