Rodney - Thanks for the confirmation that I was seeing the method of disassembly correctly.
You are right about seeing the jig or stand. I'm looking through the photos I took and don't really have a good picture of the stand. I was shooting around it and keeping it out of view as much as I could.
But, I could take some pictures of it if you are interested. Briefly, it holds a sewing machine and allows for easy rotation to any position needed. It saves lifting and turning the machine and propping it up. It also protects the many fragile things protruding from the machine. With everything free and clear, a machine may be run in any position.
Since its really unrelated to this post, I could post another thread if you think it would be of interest. If so, where would be the best place to post it? Here with vintage machines?