Searching for Roto B18

A quick learner says:
I am looking for the following window lock hardware for a crank out window.
Thumbnail of the uploaded file named Window Hardware.jpg
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Casey from SWISCO responded:

Hello,

We carry a couple of casement window locks that are similar, but none are exact. 

The closest matches we have are our 38-209 and 38-205, but I am not certain if either will work for you. Look over our photos and information and let me know what you think.

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