Window crank help

A quick learner from USA says:

I need help finding the correct replacement part. I have looked at all of the local home repair stores, without any luck. Please help.
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Tom from SWISCO responded:

We carry a ton of operators similar to yours, so I'm confident we'll have a match. Looking carefully at your photos, we have two different products that you should review. See our 39-193 or 39-277. Carefully look over our photos and dimensions and please let me know if either will work.

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