I cannot figure out what these might be: each is 9 inch long; 1/4 in. wide; set of 12 of them in special pouch; marked S. Kirk & Sons; each ‘thing’ marked STERLING and weighs .40 oz. They seem too long to be something like a collar stay, and also in general, too flexible/flimsy to be “stays” . My effort to upload a photo has failed 
There is a Reddit group called Whatisit that might be able to help you.
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Corset Stays maybe !!! 
Since there are 12 of them I got hung up on them being for dining. I do think Jools is on to something. The might be Victorian corset boning or stays for a very elegant lady.
Try this link Shaping Metal Boning 1/2" White | WAWAK.
Also this link 10 Types Of Corset Boning For Historical Corsetry - Sew Historically
Also this helps: There are usually two bones at the busks (one on each side), four bones at the laces (two on each side), and one bone for each seam between panels. So, if you have eight panels, for example, there would be six bones, for a total of twelve in the corset, including busks and laces.
At first I was thinking some kind of kebab Skewers , then I thought Stays 
. So depending on the flexibility their use may be determined by that !!! 
It is silver anti tarnish bag (1924 - 1932). The “thing” is still a mystery…
I think corset boning is a great guess, but I’m not convinced they would use sterling on something that wouldn’t be seen when cheaper alternative metals would be available.
I’m no expert, but practical considerations favor choosing a material other than silver for the underwires.
True, however vanity and money know no bounds, as a woman I’d love sterling silver stays if I wore corsets.
Currently Tiffany, Cartier and others sell sterling silver men’s collar stays. You can get them engraved, with a saying “Love” “Happy Birthday” or initials.
The Victorians had specialty silver accouterments for dining in sterling and plate from Asparagus servers to ice cream servers. Some forums concentrate on identifying these dining oddities. I hope someday to stumble upon what these are. Perhaps just writing to Kirk and Sons customer service they might help identify or Replacements LTD mich id [Replacement China Patterns, Flatware, and Crystal | Replacements, Ltd.(https://www.replacements.com/)