Looking for springer balance replacements for 20 or 30 years old windows

A home owner from North Stonington, CT says:
I have double hung tilted windows and are 20 or 30 years old. Can not find any brand names but found a marking of 9000 / 9500. One has 61" (l) x 3 1/2 " (w) and another is 53 " (l) x 3 1/2 " (w).
User submitted a photo of window hardware.
Profile picture of Tom
Tom from SWISCO responded:
Thanks for posting. Is there any way you can remove your channel balance from the jamb liner and show us a picture of it separately? I would also need a clear picture of the shoe at the end of the cord. Thanks!
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