need to replace casement window hardware

I do not see any identifying names on this mechanism. I am on the ocean and keep windows open all the time, so salt air and exposure make for rusted mechanisms. I have contractor friends and also a handyman who can do the work.

Please let me know if you need more detailed photos. Thanks for your help.

Win Dell'Ario

i just learned that these windows are Eagle brand. Does that help inform the mechanism you would recommend? Do you think there is something in your line that would work? Should I approach Eagle instead?
Thank you.
win