Sliding door lock

Question

Not sure if this is enough to identify what kind of handle this is. This is from a sliding 3 panel door. I believe the door is from the mid 1970's. Any help would be great. Looking for a more secure replacement.

User submitted photos of patio door hardware.

Paul · Accepted Answer

This looks a bit like our 82-001K. Check it out and let me know if this could work for you.