Cranking mechanism

A handy person from Maine says:
October 20, 2019
Hello the part number is 31858, I looked that part up and I'm having difficulty finding what looks like the picture I sent you please help
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Bob from SWISCO responded:
October 25, 2019

Thanks for writing in. The first operator style that comes to mind is our 39-315 and 39-316, but it appears that your operator's link arm has an offset. That would be more akin to our 39-220 and 39-221. Look other both sets of operators, review the dimensions, and let us know what you think the better match is.
Maxim Dyad Sill Mount Operator, LH
Maxim Dyad Sill Mount Operator, LH
39-220
$29.78
Truth Dyad Operator
Truth Dyad Operator
39-315
$24.40
Truth Dyad Operator
Truth Dyad Operator
39-316
$24.40
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