problem with top attached

I think your top attachment is our 19-005, not the 19-002. I've narrowed this down to two possible channel balance Series: either our Series 380 or our Series 385 balances.

Now, as you can see, there is only one difference between these two Series, and that is their bottom shoe. The Series 380 uses the 15-005 while the Series 385 uses the 15-004. I can't tell what the shoe is, since it's too damaged. I recommend checking the other balance in the window, assuming it's whole.