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SpectrAlert Advance strobe [01]
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SpectrAlert Advance strobe [02]
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Former Circuit City in Wheaton, Maryland
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Edwards 270A-SPO at the American Legion in Silver Spring
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Wheelock 7002T at the American Legion in Silver Spring
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Remote annunciator at the American Legion in Silver Spring
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Simplex pull station at an apartment building
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Fire alarm strobe mounted through a glass window
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Fire alarms at Dick's Sporting Goods
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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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SpectrAlert Advance horn/strobe at Big Lots
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Fire alarm pull station at Wawa in Glen Burnie
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Metro Center station entrance pylon
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Pedestrian bridge over railroad tracks [01]
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Pedestrian bridge over railroad tracks [02]
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Pedestrian bridge over railroad tracks [03]
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Pedestrian bridge over railroad tracks [04]
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Pedestrian bridge over railroad tracks [05]
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Pedestrian bridge over railroad tracks [06]
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Peace sign on a bridge pier
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Washington Metro bridge over Paint Branch Trail
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Green Line train crosses bridge over Paint Branch Trail
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Box culvert under CSX tracks
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Eastbound Capitol Limited at Harpers Ferry [01]
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Eastbound Capitol Limited at Harpers Ferry [02]
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Winchester and Potomac Railroad Bridge [01]
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Winchester and Potomac Railroad Bridge [02]
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Winchester and Potomac Railroad Bridge [03]
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Freight train on CSX Shenandoah Subdivision
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View from Maryland Heights overlook [01]
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View from Maryland Heights overlook [02]
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View from Maryland Heights overlook [03]
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Confluence of Potomac and Shenandoah Rivers
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View from Maryland Heights overlook [04]
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View from Maryland Heights overlook [05]
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Abandoned bridge piers and CSX Shenandoah Subdivision bridge
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Winchester and Potomac Railroad Bridge [04]
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Abandoned bridge piers at Harpers Ferry [04]
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CSX trailers
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ADT pull station at White Marsh Mall
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Roosevelt Bridge
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490 L'Enfant Plaza pull station
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Simplex TrueAlert at Mars Supermarket
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Lathem LTR4-128 behind Edwards cover
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Halon pull station at P. Buckley Moss Museum
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M/V Roanoke and M/V Floyd J. Lupton [02]
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M/V Floyd J. Lupton approaching Hatteras Village [01]
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M/V Floyd J. Lupton approaching Hatteras Village [02]
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Hatteras Village
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Coast Guard station at Hatteras
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M/V Floyd J. Lupton approaching Hatteras ferry terminal [03]
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M/V Floyd J. Lupton approaching Hatteras ferry terminal [04]
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M/V Floyd J. Lupton docking at Hatteras
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Hatteras ferry terminal [01]
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Hatteras ferry terminal [02]
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Hatteras ferry terminal [03]
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Hatteras ferry terminal [04]
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Simplex pull station in Charles Town, West Virginia
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Abandoned rowhouse at North Calvert and East Read Streets [01]
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Abandoned rowhouse at North Calvert and East Read Streets [02]
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Abandoned rowhouse at North Calvert and East Read Streets [03]
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Runway at College Park Airport [01]
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Runway at College Park Airport [02]
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Paint Branch Trail [01]
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Paint Branch Trail [02]
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Paint Branch Trail [03]
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Stream in the Lake Artemesia Natural Area
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White Crown Victoria
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Fire alarm at Martin's in Waynesboro
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Fire alarm pull station at New Street parking garage [01]
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CSX Shenandoah Subdivision bridge
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Freight train on CSX Cumberland Subdivision track
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Harpers Ferry tunnel portal
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Freight train at Martinsburg [01]
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Freight train at Martinsburg [02]
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Freight train at Martinsburg [03]
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Fire alarm speaker at Maryland House
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Public address speakers and fire alarm strobes at Greensboro station
Plaza in front of the Augusta County Courthouse