Size? Looks like someone added a can opener to a knife handle.
Looks like it is covered with paint.
The Native American lacrosse stick is interesting.
Looks like glass or dyed chalcedony.
Possibly a carpenter's union pin.
It's just a barrel clasp and could have been from the 1960's.
Looks like the marcasite is glued in.
Looks like they are made in Indonesia and marked and sold by this company ..... https://korite.com/
This info says after 1946..... https://www.collectorsweekly.com/stories/249750-mizpah-scottish-brooch
Diamond dust has been used to cut and polish diamonds and corundum in India since the 17th century.
The setting and the facets on the OP's piece have been beat to death.Facets on corundum can be as sharp as facets on other types of stones.
Did you notice that the "bail" is a pin hinge with a cut off pin and added O-ring?
Is the size and shape of cameos calibrated to specific dimensions when cut to fit commercial setting of the time? Modern setting are usually...
The animal is a Hippocampus seahorse.
If you look at 80% or more of the repousse,chased,engraved pieces which have been posted on the forums,you will see "errors" on the pieces. People...
The value would depend on materials used,who the carver is,age,etc. much like everything else.Being small and not actually carved wood,probably a...
https://www.google.com/search?channel=tus&q=wood+carved+oni+mask&tbm=isch&source=univ&client=firefox-b-1-d&sa=X&ved=2ahUKEwiik8OlhJfkAhUlNH0KHVcICi...
Lathe spinning/forming has been around for centuries and used various metals ........
Looks like the base was spun.
The other "half" was sewn into the end of the belt.
Separate names with a comma.