Casement window crank assembly, dual arm

A quick learner from Juneau, AK says:
May 22, 2022
Looking for replacement crank assembly for casement window. Crank is 2 scissor style, dual-arm, Truth brand hardware, and Opens rectangular window outward, from bottom (window hinged across top). Vinyl window has ~1/4" wide frame, through which crank is mounted to outside of sill.
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Lauren from SWISCO responded:
May 25, 2022

Hello, thank you for posting,

Your assembly resembles the 39-239B operator with the 39-536 pivot slide (sold separately). Please review the dimensions to determine a good fit and let me know if you have any questions. 
Truth Hardware Pivot Slide Assembly
Truth Hardware Pivot Slide Assembly
39-536
$3.20
Encore Awning Operator, Sill Mount
Encore Awning Operator, Sill Mount
39-239B
$42.42
How to identify casement and awning operators
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