Please help with coradco window crank replacements

A contractor from South Bend, IN says:
Hi, home was built in 1986, I believe these Coradco casement windows to be original. Need 12 left hand cranks and 6 right hand cranks. Thanks.
User submitted photos of a window operator.
Profile picture of Tom
Tom from SWISCO responded:
Please start by looking at our 39-155 and 39-156 operators. Carefully compare our dimensions to your parts to confirm that they match up. If you also need the cover and handles, see our 39-107 and 39-114L.
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