Hello Swisco,
As you can see from image 0369, a piece of the hand-lever sheared off. Cast into the hand-lever itself, I notice a number: C-7442-5. The sheared off piece together with the intact piece formed a slot that fit over the internal latch control seen in image 0372. Because the internal control in 0372 protrudes into the door frame, I cannot figure out how to remove latch mechanism shown in image 0361. The receiver piece in the door frame is shown in image 0370, and I see a number: 7700B 69 (part of this is visible in the image). I hope this provide enough clues. Thanks for your efforts.
Best Wishes,
Steve