http://cgi.ebay.com/1908-Singer-Sphi...-/130524036552
your cabinet is much prettier than this one and the asking price is $349.00, so i guess you got a deal. however, when i browsed them, i didn't see any from before 1900. i don't know if that matters to you. it sure wouldn't to me.
edit: click on the 3 images to get the full flavor of the bean.
edit again:
http://www.sewmuse.co.uk/singer3.htm