A quick learner from Georgetown, Texas says:
March 26, 2016
The aluminum part of the balance is 27" long. I have attached pics of the end pieces and the markings. Need help selecting correct balance.
Paul from SWISCO responded:
March 30, 2016
Thanks for your patience in this matter. Your balance attachments look a little different, but after a little homework I have determined that our S380-27 could be a good match for you. Look it over and see what you think. For the stamp option, go with our 2660.