Thanks for the comments and input.
The machine didn't have any accessories with it, but I will go ask if they maybe had them behind the counter or something. I understand from my own researching that it's built in cams are plastic... I will have to try to get a look at them to see if they are intact. I will go check it out better tomorrow.
Interesting to read about the competition between Vigorrelli and Singer 401. I had also found that Vigorrelli worked for the Necchi company.