You should post this in the Vintage section. There are members who go there that have a fountain of knowledge on these things. I'd say that it looks like a 50's model. It is in a wedgewood case. As to the value of it, I don't have a clue. But, I bought one for 20.00 at a yard sale and I think I got a steal. I wouldn't take less than a hundred for it. I was told at the Singer dealer that I should hang onto it because it is a work horse and will sew leather and denim like no body's business. So, you might want to reconsider selling yours.