ancient casement operator

A quick learner from Texas says:
I think my operator is more than 50 years old. It's about 9" from the end of the arm to the axle on the rotator.
Casement operator
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Tom from SWISCO responded:
Hello! Please take a look at our 39-001. Please make sure your dimensions are compatible with ours. Get back to us and let us know if this is what you have been looking for.
A quick learner from Monroe Michigan says:
I live in a Lustron home a kit home from the late 40's. I'm hoping this window crank works for my application. The dimensions are the same as listed. Has anyone else used these for a metal home like this Lustron?
Anatomy of a casement window
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