I am looking for replacement hardware--cranks and arms--for Andersen windows from the 1960s. This picture is not the original crank but one we were able to find about 10 years ago that works well with a bit of a gap on the sill.
Bob from SWISCO responded:
May 25, 2021
These are old Andersen operators that are no longer made, but you might be able to replace them with our 39-365 and 39-366 type operators, as well as the 39-504 track. Take a look and see what you think.