Need part id for casement windows

A handy person from Massachusetts says:
August 3, 2021
Says DH Del Mar hardware. Made in Canada. Wright is written in cursive on one part. Arm is rusted. Need both right and left windows.
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Emily from SWISCO responded:
August 6, 2021

Hello there!

This reminds me of our 39-387 or 39-388 Split-Arm Operators. Carefully compare our dimensions to yours and see if this is a match for what you need. For a new handle see the 39-114L. 

Dimensions for 39-388
Dimensions for 39-388
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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