wright left window crank

May we see a photo of the operator possibly from a bird's eye view? Could we also have the measurements of the complete operator? These photos and information will help us narrow down which of our replacement pieces to recommend. 

This picture helps, but so much of the operator is still obscured by the rest of the window. I'd like you to remove it entirely so that no details are obscured, then take a clear top-down photo that shows the whole mechanism in one shot. With that kind of picture, I'm confident that we'll be able to find a good match.

Thank you for the additional photos. You mentioned your operator arm is 9" so that would be the 39-028. However, looking at your photos your operator arm looks longer like the 39-014. I may be wrong, but have a look at both operators and let us know what you think. We also have placed some helpful videos on this page for you to look over.