Miriam, thank you for the link. I'll be needing that information for sure! I'll see what other machines I haven't posted yet, I washed a couple cases, and then got totally absorbed into the green 15.
I've been cleaning for hours but it's very rewarding work! Here's a nice crinkle finish blackside 128. This old Standard is attached to a board and frozen solid. I found this one interesting. It's a Household Sewing Machine Company. I love the cool initial plate. ISMACS had diagram of it or I never would have figured out what it was!
http://www.ismacs.net/household/1879.html