The brass front was one of my main concerns, and I began working on it almost immediately. I used a soft piece of leather, as well as hand pressure (the more you can repair with your fingers, the better) as well as various wooden tools. You may need to work mainly from the back, but also from the front. Very tricky areas tend to be large flat spots and gentle curves. The back on the bob, as well as the front brass dial surround are crimped in place. The crimping was very carefully lifted a little at a time, and as little as possible until the bob came apart. I was surprised to see that the bob was actually made of three pieces, rather than just two. I had expected just a front and back, but there is also a steel dished front piece. It doesn't actually support or make contact with the front, so I assume it's merely for added weight and rigidity. When I took this apart, I thought that this arrangement was odd, because the rod can't be pulled out from the top of the bob. I later found out that this might be a later repair, since normally the rods simply continue (as a flat bar) right into the rating nut.
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