the part numbers on it are 7700-17 and 2573562 and 7700-19, and 7700-16. all anderson windows
Dave Sr. from SWISCO responded:
December 1, 2016
Take a look at our 82-037 latch and deadbolt assembly. I'm not sure if it's an exact match, but it could be a newer version of the one you show in your photo.