Replacement casement window crank-arm

A quick learner from St. Cloud mn says:
Unable to locate this part. The arm in 12 in from tip to angle at base. Any ideas I would appreciate it
User submitted photos of a window operator.
Profile picture of Tom
Tom from SWISCO responded:
See our 39-399 and 39-541. This hardware looks like what you show in your picture. What do you think?
Anatomy of a casement window
Anatomy of a casement window
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