I bought an older singer. Thought it was a 301. I do have pictures of it on here. Got the book. It's close to picture but not exact. Tried to thread. Most machines thread same on top. The bobbin is a drop in I believe it's called. Is there a special way it works? Put it in thread pulls easy. Then I pull to top it won't pull Turned bobbin over but won't pull at all so know it's backwards. What am I doing wrong! It's one of thoses days! Can't get quilting foot to fit. Busted needles. Went to Viking. Threaded top but cant figure out how to open bobbin case! AaaaaRgh! I give up for today!!!