Entry Gard Truth casement window crank

A quick learner from Del Mar, CA 92014 says:
I need to purchase a replacement for an EntryGard Truth casement window crank.
There are two numbers on the crank: 20755,30842R
As you face the window from the interior of the house, the crank is on the left hand side and the window opens out on the right. I have attached a file with a picture taken from the outside of the window showing the numbers.
Please let me know how I can order this part. Thanks.
User submitted a photo of a window operator.
Profile picture of Donna
Donna from SWISCO responded:
Hi Fred, thanks for including a photo with your question.
Take a look at part numbers 39-155 and 39-156 (remove the operator from the window to match up with the correct hand).
Compare the measurements to your original hardware and let us know if they differ in any way.
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