casement window crank operator

A quick learner from salt lake says:
Uninstalled pic (sorry, didn't get installed version-- no others like it in the house), from 30 year old window, probably. would like to replace like for like, seems a little nonstandard. stripped, and not working very well.
User submitted photos of a window operator.
Profile picture of Tom
Tom from SWISCO responded:
Hello! Don't worry, seeing the operator uninstalled is actually much more helpful than seeing it installed, so this is perfect. This looks like our Pella 39-176 operator. Check it out and let me know what you think.
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