You're right on the #. I looked it up as three 3s, not 2. So it is a 66, which makes sense. All the motor information makes me feel better. I sew on four machines from the 50s and two from the 70s, so that doesn't sound old to me. Now to plug it in! It moves very smoothly when you turn it by hand. I usually FMQ on a 301 with a vertical bobbin, but I will try this one for the increased harp space. Thank you, everyone.