sliding door lock inquiry
Unfortunately, this handle set is no longer available. If the mortise lock it interacts with is something like our 82-218 or 82-239, you might be able to use a handle set like our 82-030 as a replacement.
Although, I can't guarantee this would work; you will have to drill new holes to try it.
If you're unsure, send us photos of the mortise lock and confirm your measurements so that we can take a further look.
Since it appears the part that is broken is the lock, that locks the door, it is likely that you will need to replace the handle set. Unfortunately, we cannot offer a replacement for the lock. It is an extremely old handle set that isn't made anymore.
Please text your photos to that phone number and include your discussion number so that our customer service agents can make sure they are forwarded to me.