I bought this book at a garage sale a long time ago, and it is full of good explanations. It is from 1967.
It has lots of funny illustrations.
Then I decided to dig through my drawer of attachments for my machine. My machine is a 15 series from 1952, and although I got it for free from a nice woman on freecycle.org, it came with lots of the original equipment. Manual, oil, feet for different things. I started looking for a zipper foot, and I have 2. Then I started looking at the menacing buttonholer.
It has all of the gear, including manual, 2 sets of guides for sizes- everything you need except....
the feed plate cover that stops the machine from moving the fabric.
So, I wasted a great deal of time online. In the end, it looks like I would have to buy the whole buttonholer set on ebay for 15-20 bucks, just to get that one stupid part.
I don't know what I will do yet. I do think that if I am going to say that I "sew," if only for fun, I need to learn how to make a buttonhole at some point....