Crank for skylight window

A quick learner from Chicago says:
July 24, 2017
Need to replace this. Thank yoU!
User submitted photos of a skylight operator.
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:
July 31, 2017
I will do my best to help. Yours looks pretty old, though, so we may not be able to get you an exact match. I'm reminded of our chain driven 39-379 skylight operator, but I'm not sure if you can adapt it to your window. The casing and dimensions are not the same as yours, so if it can work it would require some measure of alteration to where it installs. Take a look and see what you think.
Crank Handle, 11/32"
Crank Handle, 11/32"
39-114L
$4.42
Skylight Operator, Angle Drive
Skylight Operator, Angle Drive
39-379
$81.30
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