channel balance 27 9 LV CMC 7

A contractor from Austin,TX says:
I need a set of channel balances for window.
Stamp is: 27 9 LV CMC 7.
Did not see exact match on your picture choices.
It measures 28".
A customer submitted photo of channel balance attachments.
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Tom from SWISCO responded:
Thanks for posting. Before I can confirm what Series channel balance you have, I'll have to figure out what your bottom shoe is. Please look at the measurements for our 15-001 and 15-002 bottom shoes and note their depths. As you can see, they are 1-1/8" deep and 1" deep, respectively. Which measurement more closely resembles your own shoe?

A contractor from Austin, Tx says:
Looks like the dimensions match the 15-001 with a
1 1/8" deep.
Profile picture of Tom
Tom from SWISCO responded:
Thank you! Now, your top attachment is winged, while your bottom attachment is non-winged. We do not have an existing Series to match this combination, so your balance will have to be custom made.

I also see that your stamp is marked 27 9. Like the attachment combination, we do not have a corresponding stamp option to match yours. Before we can get started on the custom order, I'll have to know what the weight of your sash is, so that we can determine the appropriate stamp! You can find this out by removing your stamp from the window and weighing it on any common bathroom scale.
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