Anderson Right hand arm for casement window

A quick learner says:
I found the following on the arm "C2-C45- CW2-CW3"
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Casey from SWISCO responded:

Going by those code numbers I believe your window was manufactered after 1986. This leads me to believe you might have the Andersen split arm operators. Take a look at the operators listed on this page to see if any of  these are the ones that fit your window. If not, send us photos of your operator, and we will continue to search for other options.

A home owner from MA says:
Just found this info also on the arm in the sunlight. CR-CN/ALL 361317 2/26/91/1
Can you be more sure of the correct arm I should order with this added information?
Thank You
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Dave Sr. from SWISCO responded:

At this point, it's best to see some photos of the complete operator for us to review. 

A home owner from MA says:

Sorry The photo is down below. Couldnt figure out how to put it in this box.

Thumbnail of the uploaded file named IMG_2487.JPG
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Dave Sr. from SWISCO responded:

It looks like you could have the 39-264 Andersen operator. Look it over and see if our dimensions match up to yours. 

Keep in mind that if your window was manufactured between 1995 and 1998, you might also need to use the 39-362 adapter plate. Look at the corners of your window glass. Andersen normally etches the date of the window on the corner of the glass. 

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