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hudson: IBM 83 card sorter
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hudson: IBM 83 card sorter, main controls
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hudson: IBM 83 card sorter, main controls
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hudson: IBM 83 card sorter, logic side view
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hudson: IBM 83 card sorter
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hudson: IBM 83 card sorter, wiring harness
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hudson: IBM 83 card sorter, wiring harness
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hudson: Face Down, 9 edge front
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hudson: IBM 83 card sorter, column selector
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