I need this Truth 21550 window crank

A purchasing agent from Huntsville, AL says:
The piece says TRUTH and 21550 on it. This does not appear to be an actual part number on Truth's website.
User submitted a photo of a window operator.
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:
How about our 39-318? This appears to be a pretty close match to your hardware, but compare their dimensions and see what you think.
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