Since all the physical components still exist...how do you really date it...
Above, I see a horse’s head.
Horses were re-introduced by Spanish explorers, spreading northward through Indian traders ahead of the Spanish explorers.
(After millions of years of evolutionary development, the horse disappeared from North America at the end of the Pleistocene).
https://news.unm.edu/news/research-looks-at-origins-of-presence-of-horses-in-north-america