Italian Silver Omega Necklace - possibly 1960s or 1970s

[ngall]

The crude stamps say 'Italy' and '925'. Is the third mark an Italian province? 'BY' is not on the province list, nor is 'BV' or 'EY'.

Can anybody identify this stamp?

[ngall]

[same post, with images visible]

The crude stamps say 'Italy' and '925'. Is the third mark an Italian province? 'BY' is not on the province list, nor is 'BV' or 'EY'.

Can anybody identify this stamp?

[Timeout]

The crude stamps say 'Italy' and '925'. Is the third mark an Italian province? 'BY' is not on the province list, nor is 'BV' or 'EY'.

Can anybody identify this stamp?

I think it might be AG.