Caradco casement window operator....circa 1966

A home owner from Edina, MN says:
I am seeking replacement window operators, both LH and RH for Caradco windows which were installed in 1966. The arm measures 14 1/4 inches as measured from the center of the nylon roller to the center of the gear. I have found no other identifying markings or stampings.

User submitted photos of a window operator.
Profile picture of Tom
Tom from SWISCO responded:
Please see our 39-013 and 39-014. I think these could work for you.
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