World War I: Understanding The War At Sea Through Maps

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Link: World War I: Understanding the War at Sea Through Maps | Worlds Revealed: Geography & Maps at The Library Of Congress

 

 

“British Islands: Approximate Positions of Minefields. 19th August 1918.” Hydrographic Department of the Admiralty, under superintendence of Rear-Admiral J.F. Parry, C.B. Hydrographer, August 6th, 1917. William Rea Furlong map collection, Geography and Map Division, Library of Congress.