28 5 ap
A quick learner from jax fl says:
October 10, 2016
Tom from SWISCO responded:
October 11, 2016
Thanks for posting. Sounds like you have a 29" block & tackle balance with a stamp option of 2850. 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.