Periscope posters & prints

A sentry in the trenches looking through an improvised persicope, France, World War I, 1916 Unknown

The periscope in use in a French trench, First World War Sphere

A sentry in the trenches looking through an improvised persicope Anonymous

Periscopic camera obscura William Hyde Wollaston

Submarine Eric Ravilious

Japanese Ship Sinking Anonymous

The U.S. Navy Needs Men Poster Raymond Bannister

German type VIIA submarine U-34 Anonymous

Map and Diagram of Lindbergh's Trans-Atlantic Flight Anonymous

Mechanical toy submarine Unknown