Antique Victorian black onyx collar/ shirt Studs with original fitted box

3 studs in black onyx, plus one odd one but I think is of the same period.

Unfortunately, I do not have any info on the maker/ retailer as the box is not marked.

Beautiful, fitted hand made box for the 3 studs.

I believe these date from the later Victorian period or possibly early 1900's.

Good condition, no issues.