Can anyone tell me if the singer sewing machine I have is worth anything? It is a series '403' made in the late 50's early 60's. If anyone has any type of information of its worth please let me know. I have the booklet and original box of parts for it. Works great just curious is all thank you so much

I never see old sewing machines going for more than a hundred to two hundred dollars.
Antique dealers will only give you a few dollars for them and then turn around and sell them for one or two hundred.