Metals appear to be all brass with copper and a silver-tone plating.

None of the materials are magnetic, and the silver is unmarked and does not appear to be sterling.

There is a pendant hook on the back for this to be hung on any chain or a metal torque 

Measures 1.5 x 1.5"

Lightweight

See all photos for condition and craftsmanship.  May have some scratches and imperfections from age.

Maker and country of origin is unknown