I need this Casement Operator Track

A handy person from Oak Lawn Illinois says:
September 24, 2020
If you see this part is under the bottom part of the window is the one I need thanks
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Bob from SWISCO responded:
September 29, 2020

This might be our 49-528, which interacts with a track slider like the 39-529. Let me know if this seems right. If not, please show me the window operator that uses this track in its entirety (gear box and link arms). 
11-3/8" Casement Operator Track, 3 Hole
11-3/8" Casement Operator Track, 3 Hole
39-533
$2.95
11-3/8" EntryGard Track, 4 Hole
11-3/8" EntryGard Track, 4 Hole
39-505
$3.70
14-1/2" Casement Track, Truth
14-1/2" Casement Track, Truth
39-528
$2.95
Truth Hardware Track Slider
Truth Hardware Track Slider
39-529
$1.20
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