one of the grandest of the medicis had the topknot made into a water spout ... and so the whole thing then got covered in limescale ... and then later on, centuries later, somebody hacked off the limescale with a chisel ... etc etc
https://www.getty.edu/publications/artistryinbronze/conservation-and-analysis/39-salvioli/
https://www.youtube.com/watch?v=IDV3SpsW08Q&t=1854s
