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Tom from SWISCO responded:
March 3, 2020
Hello! We can certainly help, but I'll need more information. The stamp you gave us isn't used to identify the balance Series, it just indicates the calibration of the spring. In order to ID the balance, I'll need you to remove it from the window and show me a clear picture of the top end and another picture of the bottom end. Please make sure you're showing us an undamaged balance. It's very difficult to properly identify broken hardware, so seeing an undamaged part up front will make things a lot easier. |
