replacement operator

A handy person from Indianapolis says:
The operators are about 18 years old. I don't know the manufacturer of the windows. It has stamped name of Wright. The best I can measure is 13.5 inches.
User submitted photos of a window operator.
Profile picture of Tom
Tom from SWISCO responded:
Thank you for the images! Based on the arm, I would suggest looking at our 39-013 and 39-014. I can't see the base, though. You should remove the operator from the window to confirm that my suggestions match.
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