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Chicago Illinois Central Railroad (Air view of Markham Yard)68 views
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Control Panel for tower56 views
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Control Panel for tower47 views
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Control Panel for tower48 views
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Control Panel for tower56 views
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Control Panel for tower46 views
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Control Panel for tower45 views
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Control Panel for tower44 views
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Control Panel for tower51 views
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Control Panel for tower47 views
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Control Panel for tower48 views
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Control Panel for Automatic Switching49 views
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Control Panel for Automatic Switching45 views
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Control Panel for Automatic Switching46 views
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Control Panel for Automatic Switching46 views
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Office Cabinet49 views
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Shop view of Markham Yard - test set-up in Dept. 5856 views
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Section of test set-up51 views
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Storage units for Automatic Switching machine54 views
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Storage units for Automatic Switching machine48 views
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Storage unit for Automatic Switching machine51 views
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Left hand side of test set-up50 views
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Close-up view of park fo rack showing wiring50 views
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Right hand side of rack showing test panel, relays, etc.54 views
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Close-up of test panel57 views
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Rear view of panel showing wiring52 views
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Close-up of Plug-in Relays57 views
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Skate Placer Mechanism off of rail55 views
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Skate Placer Mechanism on rail52 views
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Skate Placer Mechanism on rail50 views
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Skate Placer Mechanism off of rail53 views
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