Window Crank

A handy person from 90266 says:
Need to replace the window crank and mechanism. See picture
Thumbnail of the uploaded file named grimeswindowcrank.jpg
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Bob from SWISCO responded:

This looks like an old ROTO Operator. Can you open the window further so we can clearly see the arm configuration? From there I'll see what we can find for you. 

Anatomy of a casement window
Anatomy of a casement window
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