I don't have any images of the lock in the door. I will be doing a call to you shortly after I send this as I am in Alaska and our time zones are so far apart.
Nick
Dave Sr. from SWISCO responded:
October 14, 2016
Hello, Nick. Please see our 82-260 mortise lock. It's a little different that yours, but it may still work. I believe you will also need to replace the keeper with the 82-249, since I'm not sure your old keeper will work with the new lock.