Often seen in kitschy souvenirs, but also on higher grade castings of "spelter" (zinc, pot metal, white metal...). It has a copper or bronze plating look, often with dark shadows... not sure if this is chemically applied, or a paint wash? It's intended to simulate a bronze casting. Example below.
Next question: The old items look like they've been left outside for ages... the coating has failed, and "white rust" (zinc oxide) has formed in splotches. I'm sure I could blast the parts down to base metal, but want to avoid roughing up the remaining good surfaces, which were likely created in a metal mold.
So, any chemicals that are good at dissolving zinc corrosion without destroying the zinc part?
Perhaps the remaining copper/bronze plating will help protect those uncorroded areas?