Originally Posted by QuiltnCowgirl
Definitely a Featherweight. You can look up her serial number here:
http://www.singerco.com/support/serial_numbers.html and learn approximately when she was made. She also looks to be a "Centennial". See how the emblem is blue? This was to celebrate Singer's Centennial Anniversary.
You are absolutely right. She is a Centennial. She was made in 1951. Thanks for the link above.