channel balances

A quick learner from USA says:
I need help finding a replacement part. Hopefully the attached pics show what you need. Thanks for any help.

User submitted image of their window hardware.
Profile picture of Tom
Tom from SWISCO responded:
Hey, Dana. I think we can help, though this balance will need to be custom made. Before we continue, could you tell me what the stamp on the metal channel reads? Can you also tell me how many you'll need?
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