For those who have wondered as I did what model Singer 9W they have,?this may be useful. ?I present this as information only from my?research experience. ??
The sources below provide information guiding the reader to reach their own conclusion. ?Upon review of these sources, it is evident authors do not agree with each other. The sources are mostly without documentation so it is impossible to say what is fact?or otherwise. ??
Two sources developed their own databases and individuals entered?their machine¡¯s information; ?others relied on serial numbers. ?The??source states, there?are no known records existing, serial numbers are of no value regarding the question?of model or year of manufacture.?
Design changes are a clue that helps determine advancement but,?because there is so much supposition and very little factual?information nothing but a guess can be made.
Below are the machine's variations shown in no order of importance. Some links below contain more than one topic about the clues; you have to search around in each site and look for them.
style of decorative decals
shape or design of bobbin
width of bed and supporting hinges
location of spool holder
location of machine's serial number
alphabetic letter in the serial number
number of digits in the serial number
