I need to shoot some pics. the needlebar/presserfoot assembly is about the size of a hand grenade. The presserfoot should rotate around the needle. I took the lower rotation track off yesterday and found that the piece with the dog ears for the operator to turn is broken into two pieces. rotation is still stuck. It is a huge challenge Such fun. And there is a rack and pinion system to drive the oscillating bobbin case, pretty cool for 1907. Wish I were in Denver.