Hello,
We'd be happy to look into this for you but we would need to see photos of the original handle set and mortise lock to compare to our inventory. Please also write out the exact distance between the hole centers of the handle set to help us narrow down your options.
Though many doors are marked with Guardian, please note that it generally indicates the manufacturer of the glass rather than the door. Thank you.
Thanks for getting back to us. I agree that your mortise lock resembles the 82-227 as long as the dimensions below match yours.
As for the handle set, your mortise is commonly used with the 82-030 handle set with 3-15/16" hole spacing. It's tough to tell how the thumb latch is positioned on your inside handle but we offer the 82-030A centered and 82-030B offset keyed options. Take a look and let us know if you have any other questions.
