side window balance(s)

A home owner from Miami says:
It is 24" long. The channel is 1/2 wide and the depth is 9/16". In this channel is a 11 1/4" spring with a hook that attaches to a pulley system.

The printed blue markings on the face of the back are

"23 9 34# 19"LT GQ CALDWELL"
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Tom from SWISCO responded:
I'm afraid I cannot determine what you have based on this information alone. I recommend that you look at our Channel Balance Home Page and follow the steps in order to find the Series that best matches what you have.
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