"Andersen" Window Balance

A quick learner from Clarksville, Indiana says:
Etched into this thing are the following:

"Anderson Company"
"E89 9#27 8 84"

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Paul from SWISCO responded:
Thank you for posting, Melissa! Please take a look a tour 24-939 Andersen sash balance. This can be used to replace balance boxes with the stamp 9#27.
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