FREE: Antique Tie Clips and Mystery Item

The listing, Antique Tie Clips and Mystery Item has ended.

Here we have one oddball item with a black wodden handle. All my customers have tried to figure out exactly what this thing is and I have researched as best I can, but still no idea what it is for.
We also have two Tie tacks, each are Gold toned, one with an enlayed small garnet and the other with nice sized black onyx.
These are all from the same time period, according to previous owner, they date back to the 1950's.
My dates are made on either research or straight from the previous owners.
All information, size (in inches), markings ect.., are either written here or pictured, so please see all the photos and read this before asking too many questions, Thank you.