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Tom from SWISCO responded:
July 10, 2017
Hi, Gary. Your stamp implies that you have a 27" balance with a 2640 stamp option. You would then need to identify your Series. If you believe your balance looks like S385-27, be sure to check out the difference between S385 and S380, which is a single measurement of the balance shoe:
Comparison of 15-004 and 15-005
Once you have identified whether you need S380 (with a 15-005 shoe) or S385 (with a 15-004 shoe), measure the length of the metal channel (and just the metal channel) to verify the length you need for your balance. It should measure 27". You can double-check the stamp option by removing the window and weighing it. For a 2640 stamp, the window should weigh 19 to 26 pounds. Let me know if you need help to verify all this. |
