Window Crank Operator for a Jalousie Window

A contractor from USA says:
The two holes at the top of the operator the holes are 1/2 inch apart and the two holes at the bottom of the operator the measurements are 1 inch and a sixteenth.
User submitted photos of a window operator.
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Tom from SWISCO responded:
Thank you for reaching out to us. The closest match we were able to locate for you is our 39-280 operator. Carefully compare your measurements to ours and let us know if this is a good match for you.
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