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Greenbelt interlocking
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College Park interlocking [01]
![College Park interlocking [01]](../../../../i/upload/2024/07/15/20240715141119-0c23af03-cu_s9999x250.jpg "College Park interlocking [01] (1834 visits) Interlocking south of the College Park-University of Maryland station, on the Green Line of the Wash...")
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College Park interlocking [02]
![College Park interlocking [02]](../../../../i/upload/2024/07/15/20240715141123-5fa6adc8-cu_s9999x250.jpg "College Park interlocking [02] (2573 visits) Interlocking south of the College Park-University of Maryland station, on the Green Line of the Wash...")
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East Falls Church interlocking
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Largo interlocking
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Vienna interlocking
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Silver Spring pocket track
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Largo Town Center interlocking
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Light switch at Lorton Reformatory
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Scott's House [45]
![Scott's House [45]](../../../../i/upload/2024/07/18/20240718213401-f4c41845-cu_s9999x250.jpg "Scott's House [45] (1376 visits) “Scott’s House” is an abandoned two-story wood-framed house in a wooded area near Elkridge, Ma...")
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Edwards fire alarm pull station
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Vintage US&S railroad signals [03]
![Vintage US&S railroad signals [03]](../../../../i/upload/2024/07/18/20240718223835-1625ddb4-cu_s9999x250.jpg "Vintage US&S railroad signals [03] (1751 visits) Vintage Union Switch & Signal (US&S) railroad signals at the western end of a 5,842-foot sid...")
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Vintage US&S railroad signals [04]
![Vintage US&S railroad signals [04]](../../../../i/upload/2024/07/18/20240718223839-4821537e-cu_s9999x250.jpg "Vintage US&S railroad signals [04] (8731 visits) Vintage Union Switch & Signal (US&S) railroad signals at the western end of a 5,842-foot sid...")
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Vintage US&S railroad signals [02]
![Vintage US&S railroad signals [02]](../../../../i/upload/2024/07/18/20240718223842-e375c6d4-cu_s9999x250.jpg "Vintage US&S railroad signals [02] (2176 visits) Vintage Union Switch & Signal (US&S) railroad signals at the western end of a 5,842-foot sid...")
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Vintage US&S railroad signals [01]
![Vintage US&S railroad signals [01]](../../../../i/upload/2024/07/18/20240718223858-ee74216e-cu_s9999x250.jpg "Vintage US&S railroad signals [01] (2196 visits) Vintage Union Switch & Signal (US&S) railroad signals at the western end of a 5,842-foot sid...")
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White's Ferry alarm switch
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Electrical shutdown switch at JCPenney [01]
![Electrical shutdown switch at JCPenney [01]](../../../../i/upload/2024/07/19/20240719114937-bfcbd899-cu_s9999x250.jpg "Electrical shutdown switch at JCPenney [01] (1569 visits) Break-glass switch by Automatic Switch Company (ASCO) to shut down the main electrical service at th...")
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Electrical shutdown switch at JCPenney [02]
![Electrical shutdown switch at JCPenney [02]](../../../../i/upload/2024/07/19/20240719115019-6b351692-cu_s9999x250.jpg "Electrical shutdown switch at JCPenney [02] (1646 visits) Break-glass switch by Automatic Switch Company (ASCO) to shut down the main electrical service at th...")
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Fire alarm pull station at 2 Pidgeon Hill Drive [01]
![Fire alarm pull station at 2 Pidgeon Hill Drive [01]](../../../../i/upload/2024/07/19/20240719155328-cc5e1d45-cu_s9999x250.jpg "Fire alarm pull station at 2 Pidgeon Hill Drive [01] (1436 visits) Simplex fire alarm pull station at 2 Pidgeon Hill Drive in Sterling, Virginia.
Ben Schumin is a pro...")
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Fire alarm pull station at 2 Pidgeon Hill Drive [02]
![Fire alarm pull station at 2 Pidgeon Hill Drive [02]](../../../../i/upload/2024/07/19/20240719155333-d3596d21-cu_s9999x250.jpg "Fire alarm pull station at 2 Pidgeon Hill Drive [02] (1429 visits) Simplex fire alarm pull station at 2 Pidgeon Hill Drive in Sterling, Virginia.
Ben Schumin is a pro...")
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Vintage US&S railroad signals [06]
![Vintage US&S railroad signals [06]](../../../../i/upload/2024/07/19/20240719160833-ce5d8ee2-cu_s9999x250.jpg "Vintage US&S railroad signals [06] (3075 visits) Vintage Union Switch & Signal (US&S) railroad signals at the western end of a 5,842-foot sid...")
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Vintage US&S railroad signals [05]
![Vintage US&S railroad signals [05]](../../../../i/upload/2024/07/19/20240719160844-8e4042ee-cu_s9999x250.jpg "Vintage US&S railroad signals [05] (3006 visits) Vintage Union Switch & Signal (US&S) railroad signals at the western end of a 5,842-foot sid...")
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Wheelock Safepath Remote Microphone Station
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Vintage US&S railroad signals [07]
![Vintage US&S railroad signals [07]](../../../../i/upload/2024/07/19/20240719164643-b95a5ccd-cu_s9999x250.jpg "Vintage US&S railroad signals [07] (2871 visits) Vintage Union Switch & Signal (US&S) railroad signals at the western end of a 5,842-foot siding, nea...")
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Vintage US&S railroad signals [08]
![Vintage US&S railroad signals [08]](../../../../i/upload/2024/07/19/20240719164647-d570e1ea-cu_s9999x250.jpg "Vintage US&S railroad signals [08] (2901 visits) Vintage Union Switch & Signal (US&S) railroad signals at the western end of a 5,842-foot siding, nea...")
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Vintage US&S railroad signals [09]
![Vintage US&S railroad signals [09]](../../../../i/upload/2024/07/19/20240719164652-3c573652-cu_s9999x250.jpg "Vintage US&S railroad signals [09] (2855 visits) Vintage Union Switch & Signal (US&S) railroad signals at the western end of a 5,842-foot siding, nea...")
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Norfolk Southern track through Stuarts Draft, Virginia [01]
![Norfolk Southern track through Stuarts Draft, Virginia [01]](../../../../i/upload/2024/07/19/20240719164656-1aefd966-cu_s9999x250.jpg "Norfolk Southern track through Stuarts Draft, Virginia [01] (2891 visits) Track operated by Norfolk Southern Railroad through Stuarts Draft, Virginia, near the grade crossing...")
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Norfolk Southern track through Stuarts Draft, Virginia [02]
![Norfolk Southern track through Stuarts Draft, Virginia [02]](../../../../i/upload/2024/07/19/20240719164700-b7a394ba-cu_s9999x250.jpg "Norfolk Southern track through Stuarts Draft, Virginia [02] (2908 visits) Track operated by Norfolk Southern Railroad through Stuarts Draft, Virginia, near the grade crossing...")
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Norfolk Southern track through Stuarts Draft, Virginia [03]
![Norfolk Southern track through Stuarts Draft, Virginia [03]](../../../../i/upload/2024/07/19/20240719164704-7987325d-cu_s9999x250.jpg "Norfolk Southern track through Stuarts Draft, Virginia [03] (2923 visits) Track operated by Norfolk Southern Railroad through Stuarts Draft, Virginia, near the grade crossing...")
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Norfolk Southern track through Stuarts Draft, Virginia [04]
![Norfolk Southern track through Stuarts Draft, Virginia [04]](../../../../i/upload/2024/07/19/20240719164707-62584732-cu_s9999x250.jpg "Norfolk Southern track through Stuarts Draft, Virginia [04] (3028 visits) Track operated by Norfolk Southern Railroad through Stuarts Draft, Virginia, near the grade crossing...")
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Switch at west end of siding in Stuarts Draft, Virginia
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"Don't turn on this heater"
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Interlocking outside of Ashburn station
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Union Switch & Signal builder's plate
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Railroad signal with button copy [04]
![Railroad signal with button copy [04]](../../../../i/upload/2024/07/19/20240719185436-f8f74cd1-cu_s9999x250.jpg "Railroad signal with button copy [04] (2134 visits) Railroad signal with button copy on the crossbuck, at the location where the Western Maryland Scenic...")
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Railroad signal with button copy [03]
![Railroad signal with button copy [03]](../../../../i/upload/2024/07/19/20240719185440-7f931a68-cu_s9999x250.jpg "Railroad signal with button copy [03] (2048 visits) Railroad signal with button copy on the crossbuck, at the location where the Western Maryland Scenic...")
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Railroad signal with button copy [02]
![Railroad signal with button copy [02]](../../../../i/upload/2024/07/19/20240719185443-ce11ccbe-cu_s9999x250.jpg "Railroad signal with button copy [02] (2014 visits) Railroad signal with button copy on the crossbuck, at the location where the Western Maryland Scenic...")
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Railroad signal with button copy [01]
![Railroad signal with button copy [01]](../../../../i/upload/2024/07/19/20240719185446-395e984b-cu_s9999x250.jpg "Railroad signal with button copy [01] (2094 visits) Railroad signal with button copy on the crossbuck, at the location where the Western Maryland Scenic...")
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Power outlets at Fair Oaks Mall [01]
![Power outlets at Fair Oaks Mall [01]](../../../../i/upload/2024/07/20/20240720020138-9b2b307a-cu_s9999x250.jpg "Power outlets at Fair Oaks Mall [01] (11361 visits) Power outlets on the side of a planter box at Fair Oaks Mall in Fairfax County, Virginia.
More at T...")
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Power outlets at Fair Oaks Mall [02]
![Power outlets at Fair Oaks Mall [02]](../../../../i/upload/2024/07/20/20240720020241-f71be86d-cu_s9999x250.jpg "Power outlets at Fair Oaks Mall [02] (1430 visits) Power outlets on the side of a planter box at Fair Oaks Mall in Fairfax County, Virginia.
More at T...")
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Covered red switch at Michaels
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Cord secured behind wall plate
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Light switch at Shaffer's Barbecue
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Tower 18 interlocking [01]
![Tower 18 interlocking [01]](../../../../i/upload/2024/11/15/20241115185613-f02c209c-cu_s9999x250.jpg "Tower 18 interlocking [01] (9038 visits) Tower 18 interlocking, a three-quarter union at the northwestern corner of the Loop in the downtown ...")
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Tower 18 interlocking [02]
![Tower 18 interlocking [02]](../../../../i/upload/2024/11/15/20241115185621-7128aab3-cu_s9999x250.jpg "Tower 18 interlocking [02] (990 visits) Tower 18 interlocking, a three-quarter union at the northwestern corner of the Loop in the downtown ...")
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Tower 18 interlocking [03]
![Tower 18 interlocking [03]](../../../../i/upload/2024/11/15/20241115185626-e65cbb45-cu_s9999x250.jpg "Tower 18 interlocking [03] (2430 visits) Tower 18 interlocking, a three-quarter union at the northwestern corner of the Loop in the downtown ...")
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Tower 18 interlocking [04]
![Tower 18 interlocking [04]](../../../../i/upload/2024/11/15/20241115185634-5eee462c-cu_s9999x250.jpg "Tower 18 interlocking [04] (2397 visits) Tower 18 interlocking, a three-quarter union at the northwestern corner of the Loop in the downtown ...")
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Tower 18 interlocking [05]
![Tower 18 interlocking [05]](../../../../i/upload/2024/11/15/20241115185641-68b75281-cu_s9999x250.jpg "Tower 18 interlocking [05] (2384 visits) Tower 18 interlocking, a three-quarter union at the northwestern corner of the Loop in the downtown ...")
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Tower 18 interlocking [06]
![Tower 18 interlocking [06]](../../../../i/upload/2024/11/15/20241115185651-90db4034-cu_s9999x250.jpg "Tower 18 interlocking [06] (2362 visits) Tower 18 interlocking, a three-quarter union at the northwestern corner of the Loop in the downtown ...")
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Tower 18 interlocking [07]
![Tower 18 interlocking [07]](../../../../i/upload/2024/11/15/20241115185705-7174effa-cu_s9999x250.jpg "Tower 18 interlocking [07] (2352 visits) Tower 18 interlocking, a three-quarter union at the northwestern corner of the Loop in the downtown ...")
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Tower 18 interlocking [08]
![Tower 18 interlocking [08]](../../../../i/upload/2024/11/15/20241115185721-0b59ccae-cu_s9999x250.jpg "Tower 18 interlocking [08] (2425 visits) Tower 18 interlocking, a three-quarter union at the northwestern corner of the Loop in the downtown ...")
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Elevator at Sherman Garden Apartments [02]
![Elevator at Sherman Garden Apartments [02]](../../../../i/upload/2024/11/16/20241116012112-9677f67e-cu_s9999x250.jpg "Elevator at Sherman Garden Apartments [02] (814 visits) Car operating panel in an elevator at Sherman Garden Apartments, a cooperative housing community in ...")
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AT&T Long Lines Cashtown site [20]
![AT&T Long Lines Cashtown site [20]](../../../../i/upload/2025/02/05/20250205002828-20fe292b-cu_s9999x250.jpg "AT&T Long Lines Cashtown site [20] (464 visits) Former AT&T Long Lines tower site in Cashtown, Pennsylvania. The site is now owned by American ...")
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AT&T Long Lines Cashtown site [21]
![AT&T Long Lines Cashtown site [21]](../../../../i/upload/2025/02/05/20250205002831-542375bc-cu_s9999x250.jpg "AT&T Long Lines Cashtown site [21] (485 visits) Former AT&T Long Lines tower site in Cashtown, Pennsylvania. The site is now owned by American ...")