Patio door handle missing locking mechanism

A contractor from Glenview IL says:
April 19, 2018
Missing the finger throw locking mechanism for the first photo
Thumbnail of the uploaded file named 20180417_191121.jpg
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Tom from SWISCO responded:
April 24, 2018

If all you need is the thumb lever, you could consider our 82-252. I cannot confirm if this is a match since I can't quite make yours out, but it may be our only option. 

The OX indicates how the door operates when outside. X is the moving panel and O is the stationary panel. This appears to be how your door operates but you may want to double check in case I'm mis-reading your photo.
OX Pella Door Lock Lever
OX Pella Door Lock Lever
82-252
$37.14
XO Pella Door Lever
XO Pella Door Lever
82-253
$37.14
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