Anderson sliding window replacement lock

A quick learner from Long Island says:
The locking knob for my 26 year old old Anderson sliding window came off an is now lost. Pictured are the window with the working lock that turns to lock, and the window with the exposed inner locking mechanism and no turn handle. Not sure if this is replaceable or if an alternative would work. Thanks
User submitted photos of patio door hardware.
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:
This looks like our 90-389. Check it out and see if you agree. You may also want to see our 90-288 .
A quick learner says:
Yes. It looks just like it. We will order the part. This is a closer look.
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