Window lock

Thanks for posting. Can you tell us the distance between the center of each mounting hole on the lock? That would help narrow down your options. Since this lock is obviously pretty damaged, I'd advise measuring from an undamaged lock, perhaps from an identical window in the house. We'll do our best to assist from there. 

Hey Phil. See our 90-180 Sash Lock. This has a 2-1/4" hole spacing. Also note its backset is 3/8". The backset is the distance between the center of the holes and the back edge of the lack body. If this also matches your old lock, then I think the 90-180 is your best bet. Let me know if you have any questions.

Dimensions for 90-180