Anyone recognize this weird mark?

no other marks on it. It does test positive as silver. I have a 2nd piece, different than this, with the same mark. Can’t find that one at the moment (of course). M at a loss. Not even sure where to begin.
Thank you

 

Poorly soldered jump rings and finish,probably made by a hobbyist.

 

This looks more like an artisan piece to me.

Gauntlett, can you show the entire piece, laying flat, one photo facing up and one facing down? It's hard to see what is what, with photos of sections only.

I know you are just asking about the mark, but I think showing the whole piece can be helpful.

Also if you can find the other piece with the exact same mark, definitely post that one too.

 

Ditto.

 

I thought "shed work" right off. The agates he or she used are really pretty, but the silver work isn't that of a real professional. A decently skilled crafter is more like it.