It’s based on an old French design. They are polished stainless steel, and they’re made for Velo Orange by a manufacturer of yachting hardware in the US.
This mount is great on older bikes that don’t have the room for a spacer-type bell mount under the headset nut. It’s also perfect for those who want to maintain their bike’s classic appearance.
Works with Temple bells or Japanese bells. Hardware included, but the bell is not.