Silverline? Casement lock

A quick learner from Albany NY says:
I want to replace these two locks. Not sure exactly how they work but it appears to control the slide lock behind the sash. As you can see, they are broken and seem to be part of the sash. Can you help? Thanks.
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Lauren from SWISCO responded:

Hello, thank you for posting,

Please start by reviewing the style and dimensions of the 38-090 SilverLine casement locking handle to see how it compares to your original. Let us know what you think and if you have any additional questions! 

Unlocked rear view of 38-090
Unlocked rear view of 38-090

Anatomy of a casement window
Anatomy of a casement window
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