andersen dual arm for an awning window

A quick learner from iowa says:
I need to replace this part for my window. I cannot find a part number on it so I am not sure it is even an Andersen part. Do you have anything thatmight work? It is all hide under the window sill when done. My home was built in 1965.
User submitted a photo of their awning window operator.
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:
I don't think this is Andersen. I've been looking around in some very old catalogs and don't see anything like it. You could possibly substitute with a newer style, but I can't guarantee that anything will work. See our 39-015, 39-083, 39-069, or 39-070.
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