Switch signal posters & prints

Switch yards, Union Station, Washington, D.C., c.1907-10 Detroit Publishing Co.

On Early Shift Railroad Advertisement Poster Terence Tenison Cuneo

The Signal Anonymous

Night Signals, Eanger Irving Couse

The Blanket Signal, c.1896 Frederic Remington

The Signal John William Godward

Railway Apparatus at the Paris Electrical Exhibition: Annunciator Apparatus, France, 1882 Anonymous

The Naval Manoeuvres, with the Hostile Fleet: The Fleet Signalling with the Electric Search Light to the Colliers and Cruisers... Anonymous

Tunnel Signal, 'All Right' Anonymous

Stormy Weather: Making Signals to the Wreck Anonymous

Muddleby Junction Joseph Swain

Flags used for Nelson's famous signal at the Battle of Trafalgar Anonymous

Semaphore Signalling System, c.1794 Claude Chappe

Signalling for a Pilot Anonymous

Railway Signal Anonymous

Royal Navy Lieutenant and signal boy Anonymous

Display of Ship Distress Signals in Hyde Park London 1873 Anonymous

Signal, a Grey Arab, with a Groom in the Desert David Dalby of York

The Paris International Exhibition: Military Telegraphy and Signalling: Captain Colomb's Signal-Box for Working the Lime-Light France 1867 Anonymous

Master Magrath, the Slipper Waiting for the Signal Go! Anonymous

Preparing to Make Signals Anonymous

Signalling by semaphore on board HMS Camperdown Gregory & Co

1950s Baseball Umpire Making Out Hand Signal Gesture Anonymous

Sending a semaphore signal using flags, c1880 Geoffrey Douglas Giles

The Volunteer Review At Brighton, UK Anonymous

Foucault's Switch Anonymous

Her Signal, c.1892 Norman Garstin

Woodcut, Jesse James Signals To Train Anonymous

Edinburgh: Signal Tower Leith Harbour 1829 Anonymous

1950s Football Referee Making Touchdown Signal Anonymous

Signalman using 20 Signalling Projector WA & AC Churchman

Interior of a signal exchange during the Battle of the Somme Anonymous

At the Brighton Theatre of War: Signalling 1880 Anonymous

Interior of a signal exchange during the Battle of the Somme Anonymous

Lord Randolph Churchill in South Africa, Signalling for Lost Friends in the Bush Anonymous

Signalling Question And Answer, Military Manoeuvres In Bermuda 1873 Anonymous