I worked on my own machines, cleaning and oiling this spring as I was getting underway with sewing masks. There are three so far I've serviced. White hasn't been made for years - and if you look up the companies at Wikipedia you'll see that most of them have gobbled up each other over the years. One offshoot of this is that if you go to the Singer.com site and in the Manuals/Support link, you can enter any machine and it comes up with results. Not just Singers. It has to do with all of the companies merging their manuals, etc. My 1948 White Series 77 machine manual was in there.