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<p>[QUOTE="cmezner, post: 4971801, member: 87809"]Even though silver was supposed to be removed in 1971, some planchets that were made from the previous 40% silver composition slipped through and were struck with dates bearing 1971. This is a major mint error as all 1971 Kennedy Half Dollars were to be made with 75% copper and 25% nickel planchets.</p><p><br /></p><p>This error most likely happened when some older 40% silver planchets got stuck in the bins used to move raw planchets to the striking machines. When emptied, these silver planchets ended up in the hopper and were later struck. The amount that may still be outside of collections is probably very small. Only a couple silver planchets could have been stuck in a bin, and the possibility of them all being found is even lower. This means that 20 or fewer examples may still be in existence.</p><p>Removing silver from the 1971 Kennedy Half Dollar also marked the end of any coin in circulation containing silver.</p><p>With the removal of its silver content, the Kennedy Half Dollar became cheaper to produce. This allowed the US Mint at Philadelphia to produce 155,164,000 and the US Mint at Denver to produce 302,097,424 examples in 1971. </p><p>After the removal of silver, the weight of the Kennedy Half Dollar dropped from 11.50 grams to 11.34 grams. The removal of silver also resulted in a new composition of 75% copper, 25% nickel.[/QUOTE]</p><p><br /></p>
[QUOTE="cmezner, post: 4971801, member: 87809"]Even though silver was supposed to be removed in 1971, some planchets that were made from the previous 40% silver composition slipped through and were struck with dates bearing 1971. This is a major mint error as all 1971 Kennedy Half Dollars were to be made with 75% copper and 25% nickel planchets. This error most likely happened when some older 40% silver planchets got stuck in the bins used to move raw planchets to the striking machines. When emptied, these silver planchets ended up in the hopper and were later struck. The amount that may still be outside of collections is probably very small. Only a couple silver planchets could have been stuck in a bin, and the possibility of them all being found is even lower. This means that 20 or fewer examples may still be in existence. Removing silver from the 1971 Kennedy Half Dollar also marked the end of any coin in circulation containing silver. With the removal of its silver content, the Kennedy Half Dollar became cheaper to produce. This allowed the US Mint at Philadelphia to produce 155,164,000 and the US Mint at Denver to produce 302,097,424 examples in 1971. After the removal of silver, the weight of the Kennedy Half Dollar dropped from 11.50 grams to 11.34 grams. The removal of silver also resulted in a new composition of 75% copper, 25% nickel.[/QUOTE]
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