Need help identifying balance

Thanks for posting. See either our S380-27 or S385-27. The only difference between these two balances is the depth of the bottom nylon shoe, as the picture below illustrates. Compare both with your old balance to see what matches best. In either case for a new stamp option go with 2640.

Comparison of the S378, S380 and S385 balance shoes.

My pleasure. Let me know if you have any other questions!