Replace Hurd window operator

A home owner from Fort Collins Colorado says:
September 24, 2020
Hurd casement windows
Need right and left split arm
Installed 1995
Goldtone hardware
Window size 23 x 35
From the base to where the right angle arm attaches is 4 inches the small arm piece that attaches with the sliding clip from the stud to hole is 3 1/2 inches
7702 imprinted on bottom
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Bob from SWISCO responded:
September 29, 2020

See if our 39-387 and 39-388 match up. These look right, but go over the dimensions to confirm. For new handles, see the 39-114L. 
Split-Arm Operator, Wright
Split-Arm Operator, Wright
39-387
$36.20
Split-Arm Operator, Wright
Split-Arm Operator, Wright
39-388
$36.20
Crank Handle, 11/32"
Crank Handle, 11/32"
39-114L
$4.42
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