A Roman grain mill that was turned by a donkey, mule or horse. Found (upper stone) at Princes Street, London. Now located in the Museum of London.
The upper stone is original (and was imported from Germany), the rest is reconstructed.
Date: 1st - 2nd Century
https://collections.museumoflondon.org.uk/online/object/444964.html
146 photos taken in November 2020 with a Sony a6000 and processed in Reality Capture.