My (elderly) neighbor needs a new handle and lock, but I'm having a hard time finding a keyed surface mount mortise lock. Mounting holes are at 4 15/16". She needs a keyed lock so her helpers can get in when she is bedridden.
I cannot at this time remove the lock for more pictures (but I could sometime if I HAVE to). The current lock doesn't always unlock when she flips the nub/knob and she's forced to use a butter knife to unlock her door.