@komokwa @springfld.arsenal may have an idea
Lucite/plexiglass
I went male with what looks like a prominent Adam's apple.
Hermes/Mercury
Leather and "plastic" handle... possibly WW2 era and not real old.
? Papal States mark? I see keys..............
Looks like it would work like a box clasp.
Two part key holder.
Canadian lynx
Derek Flint had better tools.
If they are "fossil" there is no restrictions,there is with raw tusk though. https://www.alaskafurexchange.com/walrus.shtml...
Acorns are black.................
Someone removed the bail and pin from a pendant and soldered the cameo setting onto a males "signet" ring.
It is missing a milk reserve tank on the top.The spinning cone in the center cause centrifugal force and causes the milk and cream to separate ....
Anything plated with gold or rhodium will not change/discolor,it's a bad test.
Why would you think it is plated? It is 56% silver,if it were plated the number would be .0001% silver.
Low grade silver,sterling is 92.5% silver and yours is 56.1% silver. https://www.azom.com/materials-video-details.aspx?VidID=542
What photo problem? the OP's stones are obsidian and the etsy link is dyed travertine or chalcedony.
What is inside the spouted "containers"? what size is it ,looks more like a small cream separator.
It was done with a "lining engraver" ,it could have been made by a student,hobbyist,etc...... https://contenti.com/muller-straight-lining-gravers
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