Gears broken ?

A home owner from Nanuet, New York says:
Hello , I have a
Frank Lloyd Wright home built in 1953 ,
I have over 60 windows in the home and only one window that the gears broke
on one side
its a right side window Biuilt by Andersen Windows I believe
If I could order any of your products that would help me I would be greatly appreciated
Did not take it apart so I don't know if there's any numbers on it
It's still cold here
Thank you for any help I appreciate it guys
User submitted photos of drawer hardware.
Profile picture of Tom
Tom from SWISCO responded:
This looks a lot like our 39-020 operator. Carefully compare our measurements to yours to confirm if it's a match!
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