WE have a home that was built in 1997.The two up stairs windows are crank style the hardware on the bottom has rusted out and needs to be replaced.The only marking I can fine said truth.How can I find ...
Have you considered just getting replacement windows? These days they can fit any size window and they are more energy efficient. And I bet they wouldn't cost much more than fixing the old ones.
P.S. If there was a rust issue, you probably have an underlying moisture problem.