Replacing window crank and hardware

A quick learner from Boulder, CO says:
Hello there, do you know if this one will fit for the photo of the attached window. I can't tell if it's a 3/8" size or not. Do you know what other hardware I need? I'd like the two side latches on each window (I have one two crank and two locking mechanisms on two windows each). Looking for brushed gold or muted brass or cooperite seems like it would go too?can you please advise?:) thank uou!
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Dave Sr. from SWISCO responded:

Hello,

We can't be sure since the only visible part is your T-crank but you can start by comparing the specifications of the Pella operators and compatible handles that we've related for you to the original hardware. 

If you're looking for any other parts for the window, we would need to see them uninstalled to compare to our inventory. Thank you. 

Anatomy of a casement window
Anatomy of a casement window
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How to install the 39-403 and 39-404 Pella Kit
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