Glenn is here for a visit. We worked on a Simplex (a Japanese 15) made in occupied Japan. The plate that holds the bobbin in goes backwards. It took both of us holding the thing to get it back together. While it might be a pretty machine that part was a downfall. I have a really old 1890s Singer 15 with the same kind of bobbin but it was a cinch to get back together. Go figure. I'm thinking it might be something they re-engineered and improved.