First World War (1914-1918). Electric telegraph of the Russian Navy. Latvian War Museum. Riga. Latvia.

1ST WORLD WAR • 20 CENTURY • 20 XX TWENTIETH CENTURY • 20TH CENTURY • 20TH • APPLIANCE • ARMIES ARMY • ARMIES • ARMY • ARTFORM • CODED TEXT • CODIFIED TEXT • CODIFIED • COMMUNICATION • COMMUNICATIONS • CONTEMPORARY AGE • CONTEMPORARY PERIOD • DEVICE • ELECTRIC TELEGRAPH • ELECTRIC • ELECTRICITY • EUROPA • EUROPE • FIRST WORLD WAR • GREAT WAR • HISTORIA UNIVERSAL • HISTORIA • HISTORY • HUNDRED YEARS WAR • I GM • INDOOR • INSIDE VIEW • INSIDE • INSTRUMENT • INTERIOR • INVENTION • INVENTIONS • LANGUAGE • LATVIA • LATVIAN WAR MUSEUM. RIGA. LATVIA. • LUMBER • MESSAGE • MESSAGES • METAL • METALS • MILITAR • MILITARS • MILITARY • MORSE ALPHABET • MORSE CODE • MORSE • MORSING • MUSEUM • MUSEUMS • OBJECT • OBJECTS • RIGA • RUSIA • RUSSIA • RUSSIAN NAVY • RUSSIAN • SEND • TECHNICAL • TECHNIQUE • TECHNOLOGY • TEHNOLOGY • TELECOMMUNICATION • TELECOMMUNICATIONS • TELEGRAPH COMMUNICATIONS • TELEGRAPH • TELEGRAPHS • TELEGRAPHY = TELEGRAPH COMMUNICATIONS • TELEGRAPHY • TIMBER • TRANSMISSION • TRANSMISSIONS • TRANSMIT • TWENTIETH CENTURY • UMBRELLA • WAR • WARFARE • WARS • WOOD • WOODEN • WORLD WAR I (1914-18) • WORLD WAR I • WORLD WAR ONE • WORLD WAR • WW1 • WWI