Simplex Retrofriction shift levers. I'm supposed to like them, but they seemed to ghost shift on me often. Tighten down the bolt, goes away for awhile, then comes back. Switched to ratcheting shifters (old SunTour or modern equivalents), problem went away.
They are damn smooth though.
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If someone tells you that you have enough bicycles and you don't need any more, stop talking to them. You don't need that kind of negativity in your life.