Originally Posted by
debbiecharlie
Also, by the serial number AE354842, it is a Singer 15. What is the difference between the 15-88, 15-91, etc?
The model 15 was made for many years in many different configurations. The three most common are 15-88, which is a treadle, the 15-90 which is a belt driven machine and the 15-91 which has a "potted motor" and is a direct drive machine. These are all the same except how they are powered, as I understand it.
bkay