I recently came across a western Han Bronze mirror. It has a strong Persian influence and has ancient Chinese calligraphy on the rim. It also has what might be Sogdian inscriptions as well. I have translated a few words that of the Chinese. It refers to a wish for the user to be rich.It has a Christian-like tripartate saying. Do not want to say much more until I consult some experts.
This mirror was listed in an auction catalogue in April of 2011. It is poorly described. These are not four animals but Persian Iris’.
A large, superb bronze mirror with four animal masks in high relief, China, probably still Sui Dynasty (581-618) or early Tang dynasty. photo Nagel Auktionen