M & W Window Operator

A quick learner from Gibsonia, PA says:
Can you help me identify this window operator from an M & W window made around 1996. It opens to the right as you are looking at it from the inside of the house.
User submitted photos of a window operator.
Profile picture of Tom
Tom from SWISCO responded:
Thanks for posting. Please see our 39-155 and 39-156. These look like they match, but I would confirm our dimensions are the same just in case.
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