All in all, modern sewing machines have become far too complicated for their own good.Unless one is into elaborate embroidery, the need for a basic machine with a perfect lockstitch is all most seamstresses require, not the facility to produce lines of rather poor ‘swan’ motifs or the like. All the Singer sewing machines listed are low shank models.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.There were a small handful of manufacturers who made "generic" machines in the mid 20th Century (like the Morse pictured above).It's possible that it could be the Model 201 which has the Paperclip Decal Pattern.
I know you’re saying, ‘you get what you pay for’ but the early sewing machines often cost many months and in some cases even years’ wages, but they are still working. Anyone interested in the development history of the Singer Sewing Machine Company can find a very good ‘time-line’ at In the section for Featherweight machines there is a list of Serial Numbers that were issued for models 221, 221K and 222K.
Singer didn't put the model numbers on their domestic machines before the early 1950's, hence the need for this chart.
The number stamped on the bed of the machine is the serial number; both letters and numbers.
When it comes to Anderson, South Carolina Singer only lists 3 Years of Issue for all NA, NB and NC serial numbers that include Models 301, 301A, 401A, 403A, 500A and 503A.
These years are not completely accurate and are only the years of the entire allotted serial numbers; NA-1951, NB-1956 and NC-1961.