Tandem lock for a casement window

Thanks for posting. I am afraid I can't cross-reference that code to anything in our database. Can you send us a picture of the tandem lock, preferably removed from the window? We'll do our best to ID what you need from there. 

Thanks! This looks like one of our Andersen brand tandem locks. See our 38-147 and 38-148, as well as our 38-149 and 38-150.

Feel free to reach out if you had any other questions!