Mystery pivot bar

A handy person from Lombard, IL says:
These stamped pivot bars are only 2-1/4" long. I can find no brand markings on the windows themselves. I'd be comfortable finding a longer alternative and cutting them down, but there's a bit of a taper at one end that goes into the shoe, and I don't see anything like that on your site.

It's 3/16" high, 5/16" wide but 1/4" on the tapered end. Taper makes up about 5/8" of the length.

What do you think?

User submitted photos of a pivot bar & shoe.
Profile picture of Tom
Tom from SWISCO responded:
This closely resembles our 26-297. Check it out and let me know if you agree.
A handy person says:
That's unquestionably it. I wonder how I missed it. I'll certainly go order a few. Thanks.
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