Casement window sash track shoe / keeper needed

These photos are of a working casement window in my unit. I am using this window as a reference. Another identical window in the unit will not open because this sash-mounted track shoe / keeper is missing after glass replacement.
The part I need is the metal sash track shoe that mounts to the bottom of the sash and captures the operator arm, allowing the window to open outward and pull tight when closed. The photos show the clip installed on the working window, the operator arm engaged, and the full window context. I need the exact replacement of this sash track shoe.
 

Hi this is the top piece, we need the bottom piece please. The bottom piece in our picture is what's missing.