1949ish Andersen awning window

A quick learner from Peoria IL says:
Looking to repair or replace several crank mechanisms which are stripped. Home was built in 1949 and we believe the Andersen windows are original. There are two straight arms which use clips to attach to a track on the window. It looks very similar to parts 39-390 or 39-389.
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Dave Sr. from SWISCO responded:

Welcome to SWISCO. At first glance, I would have to agree that your operator looks similar to both our 39-390 and 39-389. The best to know for sure if it's a match is to compare your measurements with ours. As for the handle, our 39-286 could be worth considering. Review everything and see what you think.

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