Hurd casement window cranks

A quick learner says:
I'm traveling so I don't have any numbers. These are circa 70s windows. Various arm lengths. Pic is a bathroom window arm length approx 9in. LMK what else you need
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Casey from SWISCO responded:

Depending upon your arm lengths, I would consider our 39-014 and 39-028E operators. They are the updated version of the traditional operators like 39-028. Compare your dimensions and see what you think.

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