Marvin handle

A home owner from Delaware says:
August 29, 2020
I'm trying to locate a Marvin handle that attaches to a Truth operator with code 20810a as in the picture. Could you please help ? Thanks.
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Bob from SWISCO responded:
September 2, 2020

This operator appears to be either our 39-031 & 39-032, or our 39-155 & 39-156, depending on the exact length of the link arm. In either case, you should be able to use the 39-107 cover and 39-114L handle, which fits a spline that is 11/32" in diameter. 
EntryGard Dual Arm Operator
EntryGard Dual Arm Operator
39-031
$29.70
Caradco Window Crank, 9-1/2"
Caradco Window Crank, 9-1/2"
39-155
$29.85
EntryGard Dual Arm Operator
EntryGard Dual Arm Operator
39-032
$29.70
Caradco Window Crank, 9-1/2"
Caradco Window Crank, 9-1/2"
39-156
$29.85
Crank Handle, 11/32"
Crank Handle, 11/32"
39-114L
$4.42
Truth Hardware Operator Cover
Truth Hardware Operator Cover
39-107
$3.30
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