The machines were miles from completion, packing and delivery. The castings were marked with the serial number during manufacture.
The production runs at factories like Kilbowie were complex and long. Singer machine serial number dating Guide Please note this is only a guide, not gospel! Some people mail me to say they have a receipt from 1950 so how could my guide have their machine as made in 1948 or 1949? Let me explain. (Where your Singer has two serial numbers always choose the larger of the two to date your machine) The simple guide to dating your early Singer sewing machines.
You may have seen him on The Great British Sewing Bee or How The Victorians Built Britain. He has written extensively for trade magazines, radio, television, books and publications world wide. Alex has spent a lifetime in the sewing industry and is considered one of the foremost experts of pioneering machines and their inventors.