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Interior of WMATA railcar 5134
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Friendship Heights station [01]
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Medical Center station
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White Flint station [01]
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Twinbrook station
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Rockville station
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Shady Grove station [01]
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Bethesda station
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WMATA railcar 3217 approaching Grosvenor-Strathmore
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Forest Glen station entrance pylon
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Silver Spring pocket track
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"Next Train" sign at New Carrollton
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Parking lot at New Carrollton
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Largo Town Center interlocking
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New Carrollton platform pylon
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Orange Line train arriving at New Carrollton
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Ride On bus stop flag
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Simplex TrueAlert at Mars Supermarket
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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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Fire alarm at Montgomery College [02]
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Fire alarm at Montgomery College [03]
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Fire alarm at Montgomery College [01]
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Fire alarm at Montgomery College [04]
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Bell System manhole cover in Westminster, Maryland
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Autocall pull station at Whole Foods Market in Towson, Maryland [02]
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Autocall pull station at Whole Foods Market in Towson, Maryland [03]
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Autocall pull station at Whole Foods Market in Towson, Maryland [04]
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Autocall pull station at Whole Foods Market in Towson, Maryland [01]
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Federal Signal Model 5 siren on the Hanover Street Bridge
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Wheelock fire alarm speaker at Sears in Frederick, Maryland [01]
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Wheelock fire alarm speaker at Sears in Frederick, Maryland [02]