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Most viewed - Centralized Traffic Control
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 47th Street Interlocking168 views
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 Oakland-Stockton168 views
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 Clinton to Evansville167 views
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 Big Sandy Jct. to Beaver Jct.167 views
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 C.T.C. Machine - Sewell - Montgomery167 views(back closed)
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 CTC machine for Pacific Electric167 views
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 Page 15 - CTC Projects 1928-1950167 views
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 CTC 2'6" Tower A-5166 views(front)
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 C.T.C. machine at Springfield, Mo.166 views
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 Direct Wire Machine - Promenade St.165 views
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 West Quincy164 views
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 Roosevelt Yard 9' TCC Console (left front)164 views
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 Union Ave., Installation, Chicago164 views
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 Steamburg - Salamanca164 views
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 Batteries, etc. for CTC Morgan Tower - DeGraff to Morgan, Big Four163 views
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 Special B-30 Cabinet163 views
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 CTC machine, Erie Drawbridge163 views
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 DeGraff to Morgan CTC installation - Big Four161 views
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 D.L. & W. Junction161 views
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 C.T.C. Machine - Sewell - Montgomery160 views(back open)
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 T.C.C. Console - M-16 to Grove160 views(front)
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 B-30 Case160 viewsSparta, Wis.
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 Shenango to Buchanan C.T.C. machine located at Stoney Point160 views
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 Weston - Glen Moore160 views
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 Edelstein160 views
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 Hinsdale Interlocking159 views
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 Elkhorn City - Shelby Inst. 5' CTC Cab. 159 views(front)
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 Computer Controlled Interlocking Equipment159 views
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 Special B-30 Cabinet158 views
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 Glenn's Ferry - Nampa Huntington Inst. 158 views506C System CTC Cabinet
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 Big Sandy Jct. to Beaver Jct.157 views
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 Weston - Glen Moore157 views
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