Do you sell this lock mechanism?

Hello! It looks like you have a pretty typical Andersen brand patio glass door. Did you only need the mortise lock? If so, see our 82-037 set. I am confident this will replace your original hardware. It comes with both the mortise lock and the compatible keeper.

I've also made a list of other parts I see in your photos. You can review these parts at your convenience, but note that you only need to replace what's broken. Everything else can be reused.

Sure thing! Since the operating panel is on the left, viewed from the outside looking in, you want our 82-316.

Alternate view of 82-316