casement window operator

A quick learner from Bloomfield Mi says:
the unit is mounted in the center of sill, and the window is hinged on the left from inside. The arm has a key that fit into the flat gear.
User submitted photo of casement window operator.
Profile picture of Mike
Mike from SWISCO responded:
Thank you for posting on the discussion board.

Take a look at the Swisco 39-175 Sash Crank Operator.
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