Channel balance replacement part

Thanks for writing in! I've narrowed down your balances to a few that match from our inventory. I'll need to see a photo of the bracket connecting the spring and the string inside the balance channel to confirm the best replacement. 

I'll also need to know the stamp/marking from the metal channel. If your balances do not have them, I'll need to know the exact weight of the sash.

The last piece of information I'll need to know is the depth of the bottom shoe. This is the front to back measurement.

Profile view of a winged balance attachment