The machine I bought is an 1894 Willcox & Gibbs:
If you are lucky enough to come across one of these magnificent pieces of history, don’t pass it up. Parts can still be found on Ebay.
Read more on the history of this machine: http://www.sewalot.com/willcox_gibbs.htm
If you don't have a treadle base you can BUY A MOTOR & mount it to a board. See pic: