I have not found any markings. I realize that I might need to have the whole arm/hinge. I will take either. I have not found An arm out hinge that resembles what I currently have.
Casey from SWISCO responded:
May 31, 2022
Hello,
It looks like you have a type of four-bar hinge. Take a look and compare the specifications of our four-bar hinges here to yours.
If you need new operators down the line, see the 39-089 and 39-090 . Thanks for posting!