Hi I'm not certain but might I suggest an emblem for a cane. The bowed back would make it similary to others I have seen from europe on hiking canes. Looks perhaps 1870s'. Jake
Looks close to the same design as on a, " Great Seal Button", if I'm not mistaken...
Cool find, what ever it is...
Good luck on the ID, & Happy hunting~
Not sure of the proper term but house builders long ago sometimes tacked a small medal insignia on the newel post at the bottom of the main staircase. It was to signify that the house was built according to specs with no shortcuts. Something like an integrity mark.