So far, all of the knobs turn. I think the two machines, the Kenmore and the Emporium by DeLuxe are very similar. Evidently, both are made in Japan. [ATTACH=CONFIG]360853[/ATTACH][ATTACH=CONFIG]360854[/ATTACH]Bobbins are similar. The Emporium is the first and the Kenmore second. I haven't plugged anything in yet, and I wouldn't dare plug in the White. I have a White Rotary Treadle, and they are very similar, except this new one has the crinkle finish, but they look alike in many other ways. It is SO dirty..."Dirty White Boy..."