Storm window slide bolt

Thank you for reaching out to us. I'm afraid I can't identify your latch from these photos. We would need to see photos of one removed from the window along with the written-out dimensions. Specifically, we'd like to know the length, width, and thickness of the latch. 

Please note that there is a chance we may not have a good match or a match at all. Storm window hardware like this isn't made much anymore so they're getting harder and harder to come by.