The Cinderella is a Japanese built machine and is a 1/2 size portable machine. It is not a toy!
Does yours have panels that come off of the frame? And if you take the faceplate (chrome plate on the left side of the machine with the tensioner)off does it have an "SK" trademark stamped on the backside of it?
I have been wanting to find one for the last year or so after a friend picked up a mint condition one like you are talking about.
The machines were more than likely named Cinderella for the fact that it is a petite machine, and to sell better in the US they gave it an Americanized name.
Billy