Awning window replacement arm

A home owner from Cambridge says:
The arm that allows my bathroom awning window to open and close has rusted and broken. I don't see any numbers, names, or markings on it. I did have a contractor come by to give an estimate, and he believed it's made by a company called Andrew.

The window is 25 1/4" horizontally and 16 1/4" vertically. The arm is 7" long on the side attached to the house, 7.5" long on the side attached to the window, 9/16" wide, and 1/16" thick.

Thank you for your help.
window replacement arm
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Dave Sr. from SWISCO responded:
As I am reviewing your inquiry, our 39-433 Maxim narrow awning operator comes to mind. Take a look and see if it matches up to your operator.
A home owner from Cambridge, MA says:
Hi Dave,

Thanks for taking a look at my window. I don't think that's the right operator. Mine is a bit more complex around where it attaches to the window, and the arms don't get wider near where it attaches to the house.

It's tough to get a good picture of this part of the arm, but here's a picture of where it attaches to the window - there's a slot in each arm, and the one on the right side has a slight bend to it.

Thanks in advance for taking another look.
crank hinge
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Tom from SWISCO responded:
Thanks for getting back to us! In that case, see our 39-393 . This might be closer.
How to Replace an Awning Operator
How to Replace an Awning Operator
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