Broken Pivot bar

A home owner from USA says:
I tried to use your identify section but it will not go through. Here is my problem: I have a broken pivot bar.

I just purchased this house, I cannot identify the manufacture of the windows. I also cannot find a replacement pivot bar. Please help with any info possible. This window is a pair of single hung windows approx 72 x 50.

Here are the pics.
User submitted photos of window hardware.
Profile picture of Paul
Paul from SWISCO responded:
Thanks for posting. I believe the newer version of this pivot bar is our 26-424. As for the shoe, see our 15-218. Could this hardware work for you?
A quick learner from LEXINGTON, KY says:
I also need a balance spring, approx. 24" long compressed. There are no ropes in this area. The spring just screws in near the top of the window.
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Paul from SWISCO responded:
I'm afraid we cannot supply these springs. You will need to contact a local mill work that still makes wood windows and ask them for assistance.
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