I've attached 5 jpg files of my current "Mortise Lock" - two are of the lock in the door, and three are of the lock removed.
WRT names, numbers or makrings found on my hardware:
"made in the USA"
"0399" < I didn't not attached the photo which has this marking - I can always send it over later - i hope.
it looks alot like your 82-226
I hope the above text and my five photos help you.
Kind Regards,
Gary
