Channel balance with Stamp option???

The stamping on the balance only indicates the spring strength. We need to see photos of the balance completely out of the balance to get us started on which path we need to go down. 

I also invite you to take a look at our replacement balances we offer on our website here.

Thanks for sharing your photos with us. Take a look at both our S351-28 and S390-28 channel balances. The only difference between these two balances is the depth measurement of the bottom balance shoe. You will need to measure the depth of your bottom shoe, like in the diagram below, to determine which balance would make the better replacement. The depth measurement of the bottom shoe for the Series 351 measures 1" and for the Series 390, 1-1/8". Whichever one chosen will go with a 2730 option. 

Comparison of 15-001 & 15-002