black plastic (bottom center of pic) traco (I believe) casement window. Where "sissors" connect to the window
Dave Sr. from SWISCO responded:
January 15, 2019
Thanks for posting. Take a look at our 39-340 sash bracket, which is used with the 39-393 Roto operator. These look like the parts you are looking for. Check to see if they match up to yours.