Looking for Viking Window hardware latch mechanism

A home owner from Sacramento, CA says:
Don't know how to determine model of window, but hopefully someone can tell what i need from the images provided.
Thank you in advance
Thumbnail of the uploaded file named window hardware 2.jpg
Thumbnail of the uploaded file named window hardware.jpg
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Casey from SWISCO responded:

Hello,

Take a look at our 90-274 for the lock and the 90-282 for the keeper. These may work for you but you'll need to compare the dimensions shown on our product pages to confirm that the installation holes match up to yours. Thanks for posting! 

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