My grandma never taught anyone how to use it. She got it at a yard sale in the 50s for like $5 then kept it around as an end table. I looked up the serial number once to see how old it was, but I can't find that email :P (And I suspect it was actually a scrap of paper.)

It's a Singer No 15, still has all its bobbins and feet. No idea about needles, though.