Very unfortunate with the green machine Stefan. I'm partial to green anyway, and the ball gearing got me interested. I don't know much about the various winders, but I have come to think of long bobbin machines as much more common in the 50s than I first though. I'm thinking of (at the time) new freearm models and swing arm zigzag, but Singers 201 was still held in high regard as well as long bobbin models and they were still in production until about 1962. The other US made brands are very interesting.