Window channel balance
A quick learner from Grand Rapids, MI says:
July 20, 2016
I need a replacement window change balance. On the back is printed 23 4 JO CALDWELL
Tom from SWISCO responded:
July 21, 2016
Thanks for posting. Sounds like you have a 24" block & tackle balance with a stamp option of 2340. I'm afraid that's all I can tell based on your information, though. Now you just need to pick out the top and bottom fittings in order to determine the Series.
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.