26 3 BSI OH Window Balance

A quick learner from Hillsboro, OR says:
My window balances are stamped 26 3 BSI OH is that sufficient to identify them or do I need to remove, measure, take photos? The removal clips are broken and I've just ordered some extras, so I can't remove them to measure, photograph, etc today.

A quick learner from Hillsboro, OR says:
I could get a photo of one part of the sash balance (still have one removal clip). It has the stamp on it.

Thanks. If this enables me to order replacements I will, else I'll wait until the removal clips arrive.
User submitted a photo of a window balance.
Profile picture of Paul
Paul from SWISCO responded:
Thanks for posting. We should be able to replace this balance, but it will have to be custom made. However, before we can continue, I will need to see clear pictures of the top and bottom shoe and of the metal clip attached to the end of the cord. You will need to remove the balance in order to show us these parts clearly.
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