Window crank parts identification - L and R hand versions needed throughout house.

A home owner from Lanesborough, MA says:
December 12, 2023
Hi, I was unable to uninstall these yet - it's dark and winter and quite cold up in western Massachusetts right now. Hoping that you can identify with what I've provided. If I need to uninstall, I'll try this weekend.

These have a beige plastic cover that says Crestline.

There is a marking that says "truth" on the base piece. The window trim cutout is about 5"W x 1"H x 3"D (depth is from front of metal plate to back of pocket).

The gears are worn out and really only function to open the windows.

Thanks a million!
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Emily from SWISCO responded:
December 13, 2023

Hello there!

We should be able to help with this. I just can't identify what you have here based on these photos. Would it be possible to see a photo of the window open, showing a full view of the operator's arms? 
A home owner from Lanesborough, MA says:
December 13, 2023
Thank you!

Please see the attached photos. One has a close-up with a number stamped into a shorter arm.
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Emily from SWISCO responded:
December 13, 2023

Great, thank you for the additional photos! I recommend either the 39-031/39-032 or the 39-155/39-156 operators depending on the length of the link arm. Take a look at the specifications and see which ones align with yours. 
A home owner from Lanesborough, MA says:
December 13, 2023
Thank you so much!
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Emily from SWISCO responded:
December 14, 2023

No problem, please let me know if I can be of further assistance! 
EntryGard Dual Arm Operator
EntryGard Dual Arm Operator
39-031
$29.70
EntryGard Dual Arm Operator
EntryGard Dual Arm Operator
39-032
$29.70
Caradco Window Crank, 9-1/2"
Caradco Window Crank, 9-1/2"
39-155
$29.85
Caradco Window Crank, 9-1/2"
Caradco Window Crank, 9-1/2"
39-156
$29.85
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