Crank is frozen

Thank you for reaching out to us. We'd be happy to help but we would need to see your crank completely removed from the window, including dimensions and a clear view of the installation holes, as well as the arms that attach to the internal linkage of the window. The arm isn't bolted on, it just has an E-ring that needs to be popped off. The link arm will separate from the internal linkage once you do that, though it might take some doing since it's pretty rusted. 

Great, thank you for the additional photos! We don't sell this exact operator but take a look at our 39-258 and 39-259. Review our dimensions and compare them with yours to see how they match up. 

The 39-258 and 39-259 are gray.