This famous sculpture was discovered in 1863 on the Greek island of Samothrace—in the precincts of the Sanctuary of the Great Gods. This is a view looking at the left side of the sculpture. It was placed in a nymphaeum to be viewed from this angle.
The piece was probably carved around 200 BC—of Parian marble— to commemorate a naval victory. It is 25 feet high and rests on the prow of a ship. "The statue's powerful forward-moving stride, swept-back wings, and sophisticated drapery are clearly evident. The head and the right wing are missing." It is one of a small number of major Hellenistic statues surviving as an original.
For additional information see conveniently "Winged Victory of Samothrace" in Wikipedia.