anderson casement lock

A quick learner from madison WI says:

I need to replace the lock mechanism on an Andersen casement window
User submitted photos of window hardware.
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:
I'm not sure if you have a multi-point lock or single point. Take a look at the following parts and see if they match up to the ones you need to replace: our 39-290, 39-291, 38-145, 38-147, and 38-149. Andersen has these labeled as left handed locks. When you remove the cover, you should see an L stamped on it. Also take a look at our 39-418 keeper.
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