The crank handle is coming completely out of the housing. The window would not close completely. I think it is an older part because or the e-clip. The bar outside of the window is rusted a bit, and the rubber seal around the window is dry rotted. Maybe it is time to replace the whole window, but I really hope not!
Tom from SWISCO responded:
December 29, 2020
Your operator is very similar in design to our 39-259 VE Andersen crank. I recommend looking this part over to start out. Let me know if you think this would work for you!