1957 Arcadia Sliding Glass Door locking mechanism

A quick learner from Upstate New York says:
I have a house built in 1957 with an Arcadia sliding glass door. I have
tried locally with no success trying get replacement parts as the
locking mechanism "snapped" when locking door. I am hoping you may know
or point me to where I may find a solution. It is a great heavy door
that I want to keep.
I have enclosed pictures door measure 102" wide and 84" high.

I do not see how I can remove handles to make measurements?

I have enclosed pictures of the door and handles with mortise inside cylinder.

Any guidance appreciated.
Profile picture of Tom
Tom from SWISCO responded:
Hello! I'm afraid we did not receive your pictures, but they would be a huge help. Please try again and we can work from there!
Reply to Thread
Use this form to ask a follow-up question or to share your experience regarding this subject.
(your email address will be kept private and is only used to inform you when a response has been made)