Sash Controls Canton 2265 lock mechanism
Hello, thank you for posting,
Please start by reviewing the style and dimensions of the 82-239 mortise lock to see how it compares to the original.
For the handle set, take a look at the 82-086 that has a 3-15/16" installation hole spacing from center to center. Please note that this handle set has an offset locking thumb lever. I cannot confirm this from your pictures. This handle set is available in additional finishes under product code 82-087.
We also carry non-keyed versions of this style that I have related on the page for you.
If your handle set has a centered thumb latch, review the 82-030 instead.
Let us know if you have any additional questions!