Room: Distant Signals Patio
Source collection Distant Signals Patio
Beacon towers
Hooke telegraph system
The Prussian telegraph
Semaphore
Tellograph
Shutter telegraph
Five-needle telegraph
Morse
Mechanical signals
Color light signals
Position light signals
Colour-position signals
Railway signs
Vaguely Specified Objects
IALA Buoyage System
Beacon
Lighthouse
The Beacon of Hope
Traffic signs
Traffic light
Signals on vehicles
Road markings
30 km/h pattern