clone parts. and where to find info on clones,
 

I have a Treadle which i think is a clone .serial number is 513098. The graffics are almost perfect. It need a belt and a bobbin holder , round one, and the case says singer kind of shabby and info greatly appreciated,carol. aka cmaras1234

if you could add a picture it would be a great thing. They have to be very small. Clones are often made off from Singer 15 designs. Is you tension spring on the face plate?