Please help identify this antique jewelry hallmark

Bought a vintage/ antique silver cannetille necklace earring set. There is a tiny practically microscopic hallmark on each earring back and the clasp O-ring on the necklace. It looks like a capital “I” with an elaborate circular symbol next to it which I think is half cut off due to the very thin piece they stamped it on (why so tiny why there, ai yi yi…) Does anyone have any clue what this hallmark is? Other sellers label similar pieces as 800 or 900 silver. Some of theirs are marked as such. This was very very hard to capture with my phone. The half-circle symbol has lines and shapes inside and something coming off the bottom I think. Could this be a messy Mexico stamp?


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Could you please post a photo of the earrings fronts. It is hard to see mark IRL it might be the Mexican Bell shape Eagle mark or a Mexican mark. Style of earring could help ID the item

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Yes thank you!

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Sharper photos of hallmarks, please (macro mode).

They don’t look any better, they look like your example does. My phone camera is not the best. That is literally the best it will look. This hallmark is so small it’s not visible with the naked eye. I didn’t even know it was marked until I look at it with a loupe.