Dual Spring channel balance

A quick learner from Holiday, FL says:
I tried to upload pics but it ain't working. I have a 23.25 metal channel that measures 1/2" wide has a 19-005 at the top and I'm not sure at the bottom. the only markings are 22 9 10 CALDWELL on the side of the channel.
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Paul from SWISCO responded:
I'm afraid I cannot identify what you have based on this information. If you can, please show us pictures of the balance in question. We will need to see the top and bottom attachments and the stamp. Please also tell me the weight of the sash. Finally, please confirm the metal channel length. It should only be 23" long.
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