Need help finding part.

A quick learner from Orange, California says:
I have been unable to find this specific operator (Crank). I've been to my local hardware stores, ACE, Home Depot and Lowes with no luck. Your are my last hope. This crank goes into a Garden Windows (Top) opening.
User submitted photos of a window operator.
Profile picture of Casey
Casey from SWISCO responded:
Hi! I recommend our 39-414 Vent Operator with a 6" arm. Look it over to see how well it matches your sample.
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