2007-09-17 09:08:26 · 4 answers · asked by chris t 2 in Science & Mathematics ➔ Chemistry
In 1943, due to a shortage of copper, the US Mint started producing zinc-coated steel one cent pieces (pennies). In 1994, with the war looking more favorable, the mint started using old shell casings to make pennies.
The more modern copper-coated zinc is much more recent: it was first minted in 1982. The last all-copper cent was minted on October 22, 1982.
2007-09-17 09:20:14 · answer #1 · answered by Dave_Stark 7 · 0⤊ 0⤋
1943
I saw zinc-coated steel - I thought that's what was asked.
All from WIKI -
In 1943, at the peak of World War II, cents of zinc-coated steel were made for a short time due to war demands for copper. A few (the U.S. Mint reports forty) copper cents from 1943 were produced from the 1942 planchets remaining in the bins. Similarly, some 1944 steel cents have been reported. Following 1943, salvaged ammunition shells made their way into the minting process, and it was not uncommon to see coins featuring streaks of brass or having a considerably darker finish than other issues.
2007-09-17 16:15:33 · answer #2 · answered by Done 6 · 0⤊ 2⤋
Kenny B is right. 1982.
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2007-09-17 16:22:06 · answer #3 · answered by muddypuppyuk 5 · 1⤊ 0⤋
1943 as indicated on www.usmint.gov
2007-09-17 16:13:35 · answer #4 · answered by Phurface 6 · 0⤊ 2⤋
1943
http://www.digitalmayheminc.com
2007-09-17 16:13:57 · answer #5 · answered by Digitalmayheminc.com 2 · 0⤊ 2⤋