Channel Balance 27F
Let me know if you need more. It was hard to take a picture of the entire balance and still be clear.
Thanks for posting! I am confident that we can provide you with a replacement balance, however, to be absolutely sure, I'll need to see a photo of an undamaged balance removed from the window.
I am specifically looking to see any attachments that could be connected to the balance or that may still be in the window channel, connected to the bottom of the sash.
Unfortunately, the stamp from the balance doesn't help to identify the type of balance you need. The stamp only indicates the weight range your balances should be able to carry to support the sash however, we'll first need to determine the balance series you need.
Let me know if you have any questions.