- Right turn signal at Main Street and Green Lane [01]
- Siren on Eastwick Library in Philadelphia [01]
- Siren on Eastwick Library in Philadelphia [02]
- Siren on Eastwick Library in Philadelphia [03]
- Siren on Eastwick Library in Philadelphia [04]
- Siren on Eastwick Library in Philadelphia [05]
- Federal Signal Modulator in Atlantic City [01]
- Federal Signal Modulator in Atlantic City [02]
- Federal Signal Modulator in Atlantic City [03]
- Federal Signal Modulator in Atlantic City [04]
- Traffic signals at Atlantic and Brighton Avenues
- Traffic signal at intersection of Arctic and South Mississippi Avenues [01]
- Horizontally-mounted traffic light in Atlantic City [02]
- Traffic signal at intersection of Arctic and South Mississippi Avenues [02]
- Horizontally-mounted traffic light in Atlantic City [03]
- Horizontally-mounted traffic light in Atlantic City [04]
- Horizontally-mounted traffic light in Atlantic City [01]
- Traffic signal at intersection of Arctic and South Mississippi Avenues [03]
- Siren at Warrenton Volunteer Fire Company
- Intersection of US 340, Shenandoah Village Drive, and Gateway Drive
- Vintage US&S railroad signals [06]
- Vintage US&S railroad signals [05]
- Federal Signal Model 5 siren in Lucketts, Virginia [01]
- Traffic signals at US 15 and Lucketts Road [02]
- Traffic signals at US 15 and Lucketts Road [01]
- Federal Signal Model 5 siren in Lucketts, Virginia [02]
- Traffic and pedestrian signals at East Johnson Street and South New Street
- Fire alarm horn/strobe at New Street parking garage [01]
- Fire alarm horn/strobe at New Street parking garage [02]
- Vintage US&S railroad signals [07]
- Vintage US&S railroad signals [08]
- Vintage US&S railroad signals [09]
- Norfolk Southern track through Stuarts Draft, Virginia [01]
- Norfolk Southern track through Stuarts Draft, Virginia [02]
- Norfolk Southern track through Stuarts Draft, Virginia [03]
- Norfolk Southern track through Stuarts Draft, Virginia [04]
- Switch at west end of siding in Stuarts Draft, Virginia
- Siren at Fairfield Fire & EMS [01]
- Siren at Fairfield Fire & EMS [02]
- Sirens at Gaithersburg Fire Museum
- Rail crossing at South Maple Avenue [03]
- Rail crossing at South Maple Avenue [04]
- Rail crossing at South Maple Avenue [01]
- Rail crossing at South Maple Avenue [05]
- Rail crossing at South Maple Avenue [02]
- Traffic signal at Sansom and Broad Streets
- Railroad signal and crossbuck [03]
- Railroad signal and crossbuck [02]
- Railroad signal and crossbuck [01]
- Union Switch & Signal builder's plate
- Railroad signal with button copy [04]
- Railroad signal with button copy [03]
- Railroad signal with button copy [02]
- Railroad signal with button copy [01]
- "You must push button to call for walk signal"
- Belfast Fire Department siren [01]
- Flashing signal at North Church Street and East College Street [02]
- Flashing signal at North Church Street and East College Street [01]
- Belfast Fire Department siren [02]
- Siren at El-Roy Volunteer Fire Department
- Siren at Wyse Fork Volunteer Fire Department
- Railroad crossing at Williams Road [02]
- Railroad crossing at Williams Road [01]
- Water tower with siren in Emporia, Virginia [01]
- Amtrak Carolinian near Halifax, North Carolina
- Water tower with siren in Emporia, Virginia [02]
- Water tower with siren in Emporia, Virginia [03]
- Upper level exhibit space at Nauticus
- Siren at 1300 West Broad Street [02]
- Horizontal traffic light in use as a blinker [04]
- Horizontal traffic light in use as a blinker [03]
- Horizontal traffic light in use as a blinker [01]
- Horizontal traffic light in use as a blinker [02]
- "NO LEFT TURN" sign printed over "DO NOT ENTER" sign
- Bell at Gabbin Hall [01]
- Bell at Gabbin Hall [02]
- Bell at Gabbin Hall [03]
- Signal governing exit to siding in White Sulphur Springs
- Traffic signals over Church Street and Commercial Avenue
- Red blinker signal