Caroline,
No mine looks like a Singer 66 with the modern numbered top tension and a Mdl 15 type round stitch adjusting system.
The only pic of it I have right now is over on the "Will the REAL 15 Clone please stand up" thread.
Right now I've got it all apart, well not totally, but all the plates and externals are off for a cleaning and lubing. It was dry dry dry inside. Clean but dry.
It had the wrong needle in it. A BOYE 40-60 what ever that is. Much shorter than the 15x1 that should have been in it.
As soon as I get it back together I'll take some better pics.
Do you have the owners manual for yours? I don't. I know where to get one though.
Joe