Possible French hallmark on a silver box?

Saw this mark on a silver box that was sold in France. Even the seller/dealer just said “with a hallmark” and didn’t seem to know what it is…

I hope you’re not the one who bought it.

The term “hallmark” gets thrown around very loosely. If there’s no “hall,” there’s no “hallmark.” Anyone can stamp anything on a box, but without at least some quasi-official standard, it means nothing.

ETA: And the marks on this box are so badly rubbed, they could be almost anything.

Yeah I agree it is badly rubbed, but I am hoping the shape (a club?) could be somewhat distinctive