Need LH & RH window crank assemblies for casement windows

A quick learner says:
Hi,

I need help identifying the Truth hardware assembly I need. The window opens but gets stuck when trying to close. The part does not have a clear model/serial #; I'm hoping it can be identified via photo.
Thumbnail of the uploaded file named 377BE37C-1970-4B0D-9268-91759461F495.jpeg
Thumbnail of the uploaded file named 437EFBB2-E849-4A67-AD4D-169E7F84C631.jpeg
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Bob from SWISCO responded:

This operator type looks like either our 39-253LB & 39-253RB or our 39-438B & 39-439B. See the video below to discern the difference. 

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