Where is this shell and metal Pendant from?

[apolaki]

Does anyone know what country or people the necklace originate from? The circles and fish like symbols on the pendant may give a clue? Thanks

[colin henshaw]

The fish was an early Christian symbol and the ring and dot motif is pretty ubiquitous, both in period and geographical area. With the modern metal clasp, I could guess its a made-up piece, maybe incorporating elements old and new ?? Not sure where they come from.