Signal-box posters & prints

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

Interior of the A.B. Signal-Box of the South Eastern Railway at the London Bridge Station, London, 1866 Anonymous

New Street Signal Box People Will Always Need Plates

The Particular Service Squadron in Bantry Bay: Firing Mines from the Land. B Signal Box Anonymous

At the Crystal Palace Electrical Exhibition Anonymous

The New Junction Joseph Swain

Semaphore Signalling System, c.1794 Claude Chappe

The Signal Anonymous

The Signal John William Godward

Tunnel Signal, 'All Right' Anonymous

Signalling by semaphore on board HMS Camperdown Gregory & Co

Preparing to Make Signals Anonymous

The Signal, c.1860 James Webb

Railway Signal Anonymous

General W. B. Hazen, New Chief Signal Officer Anonymous

Platelayer Signalling that the Track is Clear Anonymous

Weatherboard houses and shops on the Albert Embankment, Lambeth, London, 1900 Unknown

Edinburgh: Signal Tower Leith Harbour 1829 Anonymous

Display of Ship Distress Signals in Hyde Park London 1873 Anonymous

Cabot Tower on Signal Hill Anonymous

The Blanket Signal, c.1896 Frederic Remington

Machinery of the Safety Signal Anonymous

Signalling for a Pilot Anonymous

The Signal, 1860 James George Philp

The Signal Fire, 1880 William Hahn

Express Train with the Mail Signals Anonymous

Nelson's signal at Trafalgar in 1805 Walter William May

Smoke Signals Frederic Remington

The Barker Safety Signal Anonymous

The Signal Fire, 1880 William Hahn

Signal tower on the line before Petersburg, Va, 1864, USA Anonymous

Traffic Signal and Control Anonymous

Soldiers sending a semaphore signal using flags Anonymous

Her Signal, c.1892 Norman Garstin

Royal Navy sailor signalling William Christian Symons

Semaphore signals Anonymous