Window cranks for older Anderson windows

A quick learner from NY says:
Windows are 2 sizes:
I need the following

16" x 36" - 4 that lock on the left; 2 that lock on the right
19 3/4" x 36" - 2 that lock on the left

Windows are from 1980
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Casey from SWISCO responded:

Hello,

Take a look and compare the specifications of our 39-150 and 39-151 Andersen operators to yours. Thanks for posting! 

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