Salvator Mundi (latin for 'Savior of the World') is a painting attributed in whole or part to the Italian Renaissance artist Leonardo da Vinci, dated appr. 1499–1510. Long thought to be a copy of the lost original veiled with overpainting, it was rediscovered, restored and included in an exhibition of Leonardo's artwork at the National Gallery in London, in 2011–2012. The painting depicts Jesus Christ in anachronistic blue Renaissance attire, making the sign of the cross with his right hand, while holding a transparent, non refracting crystal orb in his left, signaling his role as Salvator Mundi and representing the celestial sphere of the heavens. Approximately thirty copies and variations of the artwork by pupils and followers of Leonardo have been identified; two are considered to have been produced during Leonardo's lifetime.