I realize that this piece is mangled and twisted but I am looking for about 40 of these. Based on the latch lock, these are Capitol Windows and this part is at the top of the channel balance.
Paul from SWISCO responded:
August 22, 2016
We don't have this exact top sash guide, but see our 18-093. This was also used by Capitol before they closed and may work for you. Let me know what you think.