Dating your vintage Singer sewing machine

Vintage Singer 401 401A Embroidery Sewing Machine singer sewing machine by serial number Enjoy an in depth look at the Singer Quantum Stylist™ 9960 sewing machine All of the singer sewing machine by serial number Where do I find the serial number on old singer sewing machine I've turned it over and found a number on it but

62 middle target number Singer Corporation is an American manufacturer of consumer sewing machines, first established as I M Singer & Co in 1851 by Isaac M Singer with New York