Right hand swing out casement crank replacement

The current crank no longer functions and cannot be repaired. It is marked Wright brand. It is sort of a bronze color.  The glass part of the window is 18". The cranks arm that connects to the bottom of the window is approximately 13" before it goes into the crank case. I am guessing it is at least 25 plus years old, it came with the house.
I would love to get a replacement that would work even if it is a different brand.  At one time I was told that the window was an Andersen but I cannot find any evidence of that.