Need to replace stripped casement window operator

A home owner from Michigan says:
This window and hardware have no markings I could locate. The upper bar that attaches to the window is 13 1/2" with a two screw attachment bracket at each end. Each attachment bracket is 3" long with two screws holes and two connecting tabs. The short linkage arms are 6 1/2" long.. The longer arms closest to the operating hardware are roughly 11" long, although I can't see how to remove the operator hardware from the casing to get a clear view. The handle is in a casing 5" wide. I have several of these operators that are stripped.
User submitted a photo of a window operator.
Profile picture of Tom
Tom from SWISCO responded:
Thank you for posting! Have you seen our 39-015? This appears similar to what you have, but take a look and see if you agree. Compare the measurements and let us know if they differ in any way.
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