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"Darth Vader" railroad signals
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Active fire alarm at Hotel 24 South
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Ceiling-mounted speaker/strobe with "ALERT" lettering
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CSX Clifton Forge rail yard [11]
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Curved fire alarm speaker at Westfield World Trade Center
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Dupont Circle station entrance pylon, stripped [01]
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Dupont Circle station entrance pylon, stripped [02]
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Emergency call box beacon at East 55th Street station
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Escalator and stair bank at Knoxville Station Transit Center [01]
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Escalator and stair bank at Knoxville Station Transit Center [02]
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Escalators at Rosslyn station [01]
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Escalators at Rosslyn station [02]
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Fire alarm and speaker at Reston Town Center station
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Fire alarm at 2200 Hamilton Street [04]
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Fire alarm at 6 North Railroad Street
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Fire alarm at 6 North Railroad Street
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Fire alarm at Best Buy in Gaithersburg, Maryland [01]
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Fire alarm at Best Buy in Gaithersburg, Maryland [02]
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Fire alarm at Dorsey MARC station
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Fire alarm at Knoxville Station Transit Center [01]
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Fire alarm at Knoxville Station Transit Center [02]
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Fire alarm at Knoxville Station Transit Center [03]
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Fire alarm at Lynchburg Public Elevator
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Fire alarm at Lyon station [01]
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Fire alarm at Lyon station [02]
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Fire alarm at Lyon station [03]
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Fire alarm at Lyon station [04]
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Fire alarm at Martin's in Waynesboro
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Fire alarm at Philadelphia Habitat ReStore [01]
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Fire alarm at Philadelphia Habitat ReStore [02]
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Fire alarm at Primanti Bros. [01]
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Fire alarm at Primanti Bros. [02]
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Fire alarm at the Bridgepointe
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Fire alarm at the Sunsphere [01]
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Fire alarm at the Sunsphere [02]
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Fire alarm at Trenton Park & Ride [01]
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Fire alarm at Trenton Park & Ride [02]
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Fire alarm at West Falls Church station [01]
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Fire alarm at West Falls Church station [02]
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Fire alarm bell and strobe at Franconia Center
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Fire alarm horn/strobe and pull station at East Liberty Presbyterian Church
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Fire alarm horn/strobe at Barnes & Noble in Charlottesville, Virginia
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Fire alarm horn/strobe at Citizens Building
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Fire alarm horn/strobe at the Hampton Inn in Independence, Ohio
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Fire alarm speaker/strobe at Chandler Hall
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Fire alarm speaker/strobe at Hotel 24 South [01]
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Fire alarm speaker/strobe at Hotel 24 South [02]
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Fire alarm speaker/strobe at Hotel 24 South [03]
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Fire alarm strobe at Chandler Hall
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Fire alarm strobe at Franconia Center [01]
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Fire alarm strobe at Franconia Center [02]
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Fire alarm strobe at Franconia Center [03]
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Fire alarm strobe at Giant Food in Gaithersburg, Maryland
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Fire alarm strobe at Kroger in Charlottesville, Virginia [01]
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Fire alarm strobe at Kroger in Charlottesville, Virginia [02]
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Fire alarm strobe at Martin's in Culpeper, Virginia [01]
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Fire alarm strobe at Martin's in Culpeper, Virginia [02]
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Fire alarm strobe at the Mormon Temple [01]
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Fire alarm strobe at the Mormon Temple [02]
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Fire alarm strobe at the Mormon Temple [03]
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Fire alarm strobe at the Mormon Temple [04]
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Fire alarm strobe mounted through a glass window
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Fire alarm upgrade at 1616 P Street NW [01]
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Fire alarm upgrade at 1616 P Street NW [02]
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Fire alarms at Dick's Sporting Goods
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Flood warning system in downtown Ellicott City [01]
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Flood warning system in downtown Ellicott City [02]
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Flood warning system in downtown Ellicott City [03]
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General alarm and public address speaker on the MV New Jersey
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Icy fire alarm strobe
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Lighted wall signage at Tower City station
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Logico2 carbon dioxide alarm
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MBTA Chinatown station
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MBTA State station
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Metro 6000-Series threshold lighting
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New Carrollton platform pylon
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Old and new fire alarms [01]
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Old and new fire alarms [02]
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Old and new fire alarms [03]
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Old and new fire alarms [04]