Did you know you can find it's Birthday? There's a number on the bottom that allows you to find out. I don't know if it's published or if you call in. Bet someone else can tell you...or I'll ask my GF and she'll tell me again! I have two and she told me how when I first got them.
Yours is much more special because you know the history. I learned to sew on one, but my Mom traded it in for a newer model. :( Happy for you!