Very small pendant. I used a magnifying glass and only could detect one mark that I describe as a bull with horns inside a circle, hopefully you can see the bull in the pic. I have this pendant long time ago but didnt post it because the mark wasnt clear. Now i can pretty sure that it is a bull with horns inside a circle. The bull is facing to your left and you can also see the horns.
Sorry if I made you loose your time but I really hope it can be identify since it appears to be very old.
Thanks in advance for any help and for your time, please excuse me for my bad english.