replacement jalousie operators

A quick learner from USA says:
I need 2 replacement jalousie operators, one right, one left. Please see attached pic of my existing units. They are more than 30 years old
User submitted a photo of window operators.
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:
I'm afraid these operators are discontinued and no longer available. If I were you, I would consider using our 39-346. This may be your best option, though I can't guarantee that it will work.
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