I probably should have also picked up the Singer 404 but I already have one and didn't want to spend the twenty bucks to have a second 404.
This Elna came with an owner's manual, sales brochure/booklet, a few small instruction manuals for various feet, and a bunch of feet including a darning foot and a buttonhole foot. Oh, and it also came with a small pewter "crouching cat" thimble/pin holder made by Metzke in 1979 (yes, it's dated on the bottom).
When looking online for a little information on this machine, I was inundated with things like SU, TSP, 65, 66, 55, and 56. Well, I think I have some of it figured out. My machine is a TSP (ok, so I still don't know what that stands for), and it is a "class 56". A "class 55" would be a portable model, whereas the 56 (mine) is designed to fit into a sewing table/cabinet. Similarly, a 65 would be a portable and a 66 would be for a cabinet. The portable 55 has an accessories tray that slides under the open free-arm to make a sort of flatbed. My "class 56" mounts into a standard sewing cabinet and it has a button that, when pressed, you can lift up the machine to expose the free-arm. Pretty slick.
Now I just need to find a cabinet to mount the thing into. Where on earth am I going to find one........