Here is my little rusted National Paveway Handcrank. Thanks to Billy and his tutes, she is looking good. Billy suggested not doing anything but cleaning because of her age, born about 1900. According to Damascus Annie the style of the handcrank is called Saxonia.
I did use a product called Evapo-Rust that I got from Harbor Freight that eats rust and isn't caustic to people. I did not use it around the decals, but soaked everything else after it had a kerosene bath. I love that stuff. There is no rust on this machine, even though some pictures make it look like there is some on the face plate.
Texas Jan (Who is now addicted to vintage machines)