Need help to identify the parts - channel balance

Question

Dear Expert,

Here is the measurement of my channel balances and the pictures of the shoe, top, and stamp, please help identify the part.
Channel length 26"
Channel width 1/2"
Depth of the show 1"
Marking: 25 3 GS CALDWELL

Problem: the Nylon sash cord broke, would like to get a pair of new channel balance

Thanks,
Jane

Bob · Accepted Answer

Hi Jane. Thanks for all the clear info. You have either an S380-26 or S385-26. The only difference between these two balances is the depth of the bottom nylon shoe, or the 'heel-to-toe' measurement, so compare both with your old hardware to see what matches best. For a new stamp option choose 2530.

Comparison of the S378, S380 and S385 balance shoes.