Marvin window crank cover

A home owner from California says:
Good morning,
I am looking for replacement parts for my Marvin window crank covers. I uploaded images of the broken crank cover (remodeling mishap).
The covers are 5.25" long. The flat area near where the crank protrudes measures 1.5 inches.
There is no model number on the cover, and I cannot see one on the crank
Your help would be greatly appreciated.
Regards,
Paula
User submitted photos of a window operator cover.
Profile picture of Tom
Tom from SWISCO responded:
Hey, Paula. Take a look at our 39-323. This may be a good match.
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