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1943 steel cents are U.S. one-cent coins that were struck in steel due to wartime shortages of copper. The Philadelphia , Denver , and San Francisco mints each produced these 1943 Lincoln cents . The unique composition of the coin ( low-grade steel coated with zinc , instead of the previously 95%-copper-based bronze composition) has led to ...
For the first few years, [2] [9] [10] they were gold-plated bronze, then later (perhaps starting in the 1930s, [11] [12] [13] 1945, [14] or 1982/1983; [15] [16] [17] different sources disagree), they were made of britannia metal plated with copper then nickel silver then gold, except for three years during WWII, from 1942 to 1945, during which ...
Botallack was a submarine mine with tunnels extending under the sea, in places for half a mile. Over its recorded lifetime the mine produced around 14,500 tonnes of tin, 20,000 tonnes of copper, and 1,500 tonnes of arsenic.
Military production during World War II was the production or mobilization of arms, ammunition, personnel and financing by the belligerents of the war, from the occupation of Austria in early 1938 to the surrender and occupation of Japan in late 1945.
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World War II [b] or the Second World War (1 September 1939 – 2 September 1945) was a global conflict between two coalitions: the Allies and the Axis powers. Nearly all the world's countries—including all the great powers—participated, with many investing all available economic, industrial, and scientific capabilities in pursuit of total war, blurring the distinction between military and ...
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The following outline is provided as an overview of and topical guide to World War II: . World War II, or the Second World War was a global military conflict that was fought between September 1, 1939, and September 2, 1945.