There were a small handful of manufacturers who made "generic" machines in the mid 20th Century (like the Morse pictured above).
Many of them were based on a Singer class 15 machine, and are commonly known as "Singer Clones" - read a bit more about them here. If your sewing machine looks a lot like these machines but has an off brand name, chances are you have a generic or clone machine.
If you are trying to sell it and it's in good condition and it has all the attachments, you can probably get between -100 for it on EBay, maybe a little less on craigslist. The problem with sewing machines is that, like pianos, the pool of people who want them is smaller than the pool who have them and sometimes giving them away is tough.
Alex has spent a lifetime in the sewing industry and is considered one of the foremost experts of pioneering machines and their inventors.
He has written extensively for trade magazines, radio, television, books and publications world wide.
Most of us know the name Singer but few are aware of his amazing life story, his rags to riches journey from a little runaway to one of the richest men of his age.
And some Singer machines are more saught-after than others!
Here's an article listing the Top 5 Best Vintage Singer Models, and many people who collect and sew with vintage Singer machines do love and seek out these particular models.