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Illinois 3/0 movement question


Gary

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I have an Illinois 3/0 I'm working on. It was terribly dirty inside and I am waiting on a mainspring that seems to be lost. However, I have another quandary, the stem has a square end and the keyless works (cylinder portion) has a square end but the stem/crown is not staying in and I'm not sure what holds it in, not sure what I am missing? Anyone familiar with this movement or the stem layout? Possibly and expanded view of the movement? I also had a spring for the keyless works fly off and I am trying to locate it!

any direction would be most appreciated!

Gary

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