The black part at the top of the metal rod broke on one side of the window. The part held on by the acrew. I have included a picture of the acorn latch on the sliding pane as well.
Tom from SWISCO responded:
October 17, 2017
Thanks for posting! Take a look at our 26-169 and 55-063 to start out. Could these be what you're looking for? Carefully look them over and let me know what you think.