I'm trying to find out the value of an antique or vintage table-top sewing machine built by NSMCO (National Sewing Machine Company). It says "Model B", and on the wooden case and on the machine itself it says "Seamstress Rotary." There's a foot pedal with it; and a different type of sewing foot (perhaps a zipper-foot), as well as a smaller sewing foot. I found a "Certificate of Warranty" in the end storage compartment that has the machine No. stamped on it; that same number is on the machine. The Certificate also has the date it was bought in 1949, and is signed by the store owner where it was bought, including the town and city (all hand-written). I've not been able to see the manufactured date on it, unless the number "32-" before the Machine No. has something to do with the year.

This sewing machine belonged to my mom, who sewed quite a bit with it, until the last few years of her life. She died in 1962. Ever since then it's been in storage inside a house. I got it out a few years ago just to see how it worked and to my surprise it did a pretty good job. The sewing wasn't perfect, but close enough to "perfect" to hold it's stitching quite well. It appeared to just need a bit of tension adjusting, which I wasn't familiar with how to do. So, it's continued to set, covered, in my bedroom. The case appears to be in at least fairly good condition. I hope someone can give me information about its Dollar value. Thanks anyone for your help and your time.