I was thinking of wood handled bell wo the 90degree. Such as used by teachers and lol, town criers.
Why a rectangular lug from the handle into the whatsit, I don't know yet, seems a soft/low melt point metal
might have more holding power and structural strength than round, this pressed into undersized hole in wood bell handle, then whatsit heated until leadbased metal adhered to the inside of the whatsit, all without burning the wood.
I don't know sniffers, haha spellcheck got me😁 Snuffers, bells may have been designed to swing a bit, or begun to move from wear, is the wear described only shown on one example?
Hats off Matt for your thoroughness, I have much respect for your efforts, not to mention results, in this forum.
I am convinced that when greencheck appears for these, it will be bell related.
Also mention these items have been posted since at least mid2000s believe.
Not solved...
The Whatsit has the rectangle hole on top and the bells or snuffers have the handle attached at 90 degrees.
Also I can't see how a snuffer would have that kind of wear around the round hole.
Still researching...