nedly

Hello,
I just bought this Morse sewing machine for my wife yesterday at the Goodwill. Only $10!! anyway, I can't figure out what model it is. Everything seem to work fine, and i'm figuring what is what as I tinker a bit. The one thing i can't figure out, is if i'm missing part of the bobben wrapping wheel. Excuse my novice terminology. If some could please tell me which model it is I would be so greatly appreciative!!