 Due to its fragility, it now remains in a temperature-controlled private collection in London.The sculpture was attributed to Leonardo da Vinci by art historian Carlo Pedretti in 1985, mainly due to a note Leonardo had written for himself in another work.On a c.1503-1504 worksheet from the Codex Windsor set of Leonardo's drawings are sketches of horses, believed to be part of a study for the painting of "The Battle of Anghiari".