Help IDing patio door lock parts

Thanks for contacting us, Ray. This looks like our 82-238 mortise lock to me. Look it over and let me know if you agree!

Oh, I'm sorry. I thought your prior photo of this lock was just another photo of the other lock from another angle. 

I'm afraid I'm not personally familiar with this lock. Please give us a little more time to look into it and see if we can find something that matches. In the meantime, would it be possible to see a photo of the handle that interacts with this lock?

I think I recognize that mortise. It looks like the one we sell for our 82-402 Tulsa lock and handle kit. I recommend checking that out to see how well it matches up.

I am leaning towards our 82-402 mortise lockset as a replacement. Look over our specifications and see if this can make for a good alternative.