Go to mySINGERstory.com
Put in the serial number and Singer will tell you the year.
You can also tell your story and it registers you to win the new 160th anniversary model.
They also give you a certificate to print.
I have the 301a (big sister to the FW)
101 (first electric model)
1590 (electric after the treadle)
Plus two modern Singers, the Fashion mate and the 150th anniversary model.
HAVE FUN!