Window crank arm replacement

A quick learner from New Hampshire says:
March 24, 2021
Hi, I have 5 of these, all older. This one is shot. Will replace them all. Can you send me the part number and also replacement manual? Thank you!
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Tom from SWISCO responded:
March 25, 2021

Please see our 39-083 operator. I think this may be a good match for you, but look it over and let me know if you agree.
Dual Arm Crank, 21-1/2"
Dual Arm Crank, 21-1/2"
39-083
$55.87
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