The Brazen Serpent is a 1618-1620 oil on canvas painting by Anthony van Dyck, now in the Museo del Prado in Madrid. It shows the Biblical story told in Numbers whereby Moses raised a bronze image of a serpent to the Israelites. It was first recorded in 1764, when it was chosen from Juan Kelly's collection in Madrid for Charles III of Spain by Anton Raphael Mengs.[1]
Scientific examination of the work has shown that he combined wet and dry medium for the work[2]