Chrome casement handle cover

A quick learner from Oregon says:
Hi I am missing the cover to this handle and believe its a wood window maybe Pella, Anderson or Marvin.Any help would be grateful
Thumbnail of the uploaded file named 123_1 (16).jpg
Thumbnail of the uploaded file named 123_1 (17).jpg
Thumbnail of the uploaded file named 123_1 (18).jpg
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Bob from SWISCO responded:

Can you give me a view that shows the entire window operator assembly, including the link arms? This can be done with the window open; I just want to properly identify what kind of operator this is, because that will determine what handle and cover you could use. Many thanks. 

A quick learner from Oregon says:
This is the best I have
Thumbnail of the uploaded file named Arm .jpeg
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Bob from SWISCO responded:

It looks like you have either the 39-253LB & 39-253RB , or the 39-438B & 39-439B , depending on what appendages these operators have at the end of the link arms. That's not visible in your photos. 

In either case though, you could use the same cover & handle sets: see our 39-375 and 39-376 , or our 39-451 and 39-452 , depending on whichever style you prefer. 

How to Orient a Dual-Arm Operator
How to Orient a Dual-Arm Operator
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Comparing the 39-253LB & 39-438B Operators
Comparing the 39-253LB & 39-438B Operators
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Anatomy of a casement window
Anatomy of a casement window
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