bathroom window
I'm very confident that we have an operator that can replace this, but I can't narrow down the list of possibilities based on these images. Your photos show the operator base very clearly, but the arms appear to be missing. That is an essential detail.
Do you have an undamaged version of this part that we can see? I'll need to see the entire mechanism before I can suggest anything.
At this point, if you have a couple of good candidates we'd like to order and give it a shot. Thank you for your advice and help.
I'm afraid these photos don't give me any new information. If those arms were thrown out then it won't be possible for us to know what this is.
Since you said this is a dual-arm operator, then you could consider our 39-342 and 39-341. The base is at least a similar design, but you won't know for sure if this is right until you try to install it.
Please also note that you would need a new handle to go with each: the 39-232 will work nicely.
For now, look these products over and see what you think.