Casement Window operator

A contractor from Newtown PA says:
Customer forwarded me these pictures. Are they enought ot ID the replacement needed?

The spider in picture 2 was of no help with the identification :-)
User submitted picture of casement operator.
A quick learner from Newtown PA says:
The mounting rail/slot on the bottom is 10" long and the two articulating arms are 5" and 9" with the shorter arm attached to the longer one and the longer attached to the bottom of the window.
User submitted picture of casement window operator.
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:
Thank you for the additional pictures. Please take a look a tour 39-282 and 39-283. Do you think these will work for you?
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