Bronze, Iron, Metallurgy, and Bells

A bronze mirror from the Eastern Han Dynasty Period. The mirror’s face is polished and reflective, while the back displays this impressive pattern. Public Domain.
Close-up of a Han ceramic model featuring crossbow-wielding soldiers in the guard tower. Source: PericlesofAthens / CC BY-SA (https://creativecommons.org/licenses/by-sa/3.0)
A Dotaku bell from the Yayoi. I love this image because you can clearly see some of the artwork in the panels of the bell. Animals, birds, and other images probably had distinct meaning for the Yayoi people which is lost to us today. Public Domain.
A Dotaku featuring some stylish swirls on its outer edge. Source: I, Sailko / CC BY-SA (https://creativecommons.org/licenses/by-sa/3.0)