Lock assy for Slding glass door

This looks like a pretty old setup. I'm not sure what your hole center spacing is, but take a look at the 82-223 mortise latch and 82-030 handle set to see if these would work on your door. We have dimensions for each part that you can use as a reference.. You would also need to use a keeper like the 89-017 and 89-021. 

If not you, might need to use the 82-005 surface mounted handle set and adapt it to our door. Drilling new installation holes may be necessary.