"Salvator Mundi" currently holds the "most expensive work of art at auction" record, according to Christie's. The painting, auctioned at Christie's in November 2017, is believed to have been created by Leonardo da Vinci and is thought to be one of fewer than 20 surviving paintings attributed to the artist.
https://medium.com/@kevinshau/on-leonardo-da-vincis-salvator-mundi-is-it-authent
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