What is this ? Medalion Belt buckle age ?

[Treasureknights]

This was originally found in forest in dirt. Was traded later on. Found somewere in Norway

It is non magnetic. Looks like lead on Silver , or lead on tinn

Can Anyone help identyfie

Measures 6 cm or approx 2.35 inch

 

[DownNDirty]

Based on the two tangs on the back side it appears to be some sort of leather ornamentation, probably for a horse harness.