Well, what a creative response to my midweek mystery question!
It may well perform more than the function for which it was designed.
Suggestions included, dog nail clipper, optometrist gadget, cigar cutter … not sure about a finger topper or circumcision tool!
My source described it as a stainless-steel hardboiled egg cutter. If you nailed it – well done.
Thanks for your interest and I’ll dredge up another challenge for next week.