For anyone who might be interested in a Singer - mother of pearl - sewing machine here is one still available in Columbia, SC. It looks like it would clean up rather nicely. I just wished I lived closer.
http://columbia.craigslist.org/atq/1865854107.html
BTW Kat Fish, I love your new fiddlebase and I think I have a copy of the model 12 manual that I could send you.
Judy