Right hand window operator

A friend from NY says:
I m trying to find this right-handed window operator. This window was from more than 10 years ago, I believe the part was from Truth(not 100% sure). The tip of the operator had that triangular part attached to it. I couldn't find any similar parts after days of research. Please help me find the part. Thank you so much.
Thumbnail of the uploaded file named window operator 2.jpg
Thumbnail of the uploaded file named window operator.jpg
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Tom from SWISCO responded:

Hello! Your operator looks like an older version of our 39-221B . Look it over and see what you think. We also sell the 39-451 cover and handle separately.

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