Help needed to find casement operators to fit older window

A home owner from USA says:
I need your help! For months and months I've been looking to fix a broken casement operator.

I'm attaching three photos with a measuring tape.

Can you give me options of what you have that will work? The arm length isn't a standard size!

Thank you so much, please let me know if you need any more information.
User submitted photos of a window operator.
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:
I believe you have the original Getty operator. We have one we sell as a replacement, our 39-044. The arm length seems to be close to the measurements of the one in your photo. Take a look and see what you think.
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