It’s totally magnetic so thin iron with a silver chrome wash finish that has mostly come off leaving the nice, slightly rusted brassy patina.
Striker is a wooden mallet on a pair of hooks attached to a base with a nice simple double row of beaded cuts.
The base and bell are 4 1/4″ diameter by 2 3/4″ high with the bell (minus the ring top) being 3″ diameter by 2.5″ high.
A small stamp in the bottom of the base says simply ‘germany”
It’s a smart looking bell that I believe dates from before WWII.