Help me with actuator identification

A handy person from Nunica Michigan 49448 says:
Flipping a house....I believe all my actuators that need replacing are of the same design / manufacturer.

I did notice on the back side (see attached photo) that they are "truth" brand with a manufacturer # 40055 on the back.

Please help me pick the correct models offered by Swisco.

There might be more than 1 length of arm but not sure yet.

Definitely know I will be needing both RH and LH.

Thanks for your support.
User submitted photos of a window latch.
Profile picture of Tom
Tom from SWISCO responded:
Thanks for posting! Based on your stamp, you may want to look at our 39-013 & 39-014 Casement Window Operators, or perhaps our 39-027E and 39-028E Window Cranks. Without seeing what your arm looks like, though, it's hard for me to say what you have for sure. Compare the suggested operators to your hardware and see which ones match up. If neither do, could you perhaps upload a few pictures of your entire operator unit, including the arms, for us to see? It would be easiest if you removed the operator entirely from the window before you take the pictures.
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