Kitchen window crank broken

A quick learner from Boston says:
Narrow kitchen window. Crank style. Plastic gear teeth broken. Can open but cannot close
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Bob from SWISCO responded:

This looks like an old Andersen operator. See either the 39-146 and 39-147, or the 39-094 or 39-095. Look over the dimensions and style of link arms for each set and see if either matches what you need. See what you think.

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