ID Awning operator

A quick learner from USA says:
Can you help me find this operator? elbow-to-elbow is 15-7.8"
User submitted photos of a window operator.
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:
I'm reminded of our 39-140 right off the bat. However, our arm length is 16-1/8", while you appear to have room for a longer arm. You would need at least 3/16" on each end. Check the window and sill cover on the window and see if you can use the 39-140.
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