With that roughed in a little closer I'll start on the collar that is under the knob handle. It is 1.00" stock that tapers to .860". The spring is in there and it is riveted on so I'm not positive how they did it. Don't want to tear it apart so I'll figure something out. Didn't have any round stock the right size so I'll turn down a piece of 1.25" stock.
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