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155:. The mint confirmed in July 2000 that the coin was a legitimate error, created by the accidental replacement of a cracked Sacagawea obverse die with a Washington obverse die. Several thousand of the coins were reported to have been minted before the error was discovered, and mint employees recovered and destroyed most of them. As of May 2019, 18 are publicly known to exist and have been certified, of which 14 are owned by Tommy Bolack. A specimen was sold in August 2012 for $ 155,250.
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Sometimes mints use proof dies in the production of coins intended for circulation. Coins produced when an identifiable proof die is "married" with a business die are known as "handsome" mules. The details on handsome mules are often noticeably sharper, and thus are distinguishable from ordinary
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The earliest mules are found among ancient Greek and Roman coins. Opinion is divided between those who think that they are accidental, the result of an incorrect combination of a new die with one that had officially been withdrawn from use, or the work of coiners working with dies stolen from an
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medal, apparently by mistake. These pieces were contained within the 2007 First Spouse medal set. The U.S. Mint has not released an estimate of how many mules were made. eBay prices in March 2009 were reported as high as $ 925.99.
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Some collectors have begun receiving a First Spouse medal mule – a piece bearing the obverse for
Abigail Adams and a reverse intended for the Louisa Adams medal. The mules surfaced in some of the 2007 First Spouse
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A "handsome" mule. The telltale difference between the image of the reverse of these two 1958 Franklin halves shown is that the eagle's right wingtip (seen as the viewer's left) on the proof coin has one fewer
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designs not normally seen on the same piece. These can be intentional or produced by error. This type of error is highly sought after by collectors, and examples can fetch high prices.
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One of the first authentic mule errors to be released by the U.S. Mint (as opposed to the deliberate mules of the mid-1800s) was the
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mule was reported to be in circulation, resulting from the accidental combination of old and new dies in production following a
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confirmed a pair of mule 2014 bullion coins struck in 999 fine silver: approximately 38,000 £2 Lunar Horse coins and 17,000 £2
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of UK coinage, with an estimated 50,000 to 200,000 mules released before the error was noticed.
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obverse while the
Britannias were struck with the non-denticled Lunar Horse obverse.
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2 cent coin was issued, featuring the obverse of the
Bahamian 5 cent coin, see
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official mint, perhaps at a time when one of them should have been destroyed.
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Gilkes, Paul (16 February 2009). "First Spouse medals set holds Adams mule".
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357:"2000-P "Mule" Sacagawea Dollar Reverse w/ States Quarter Obverse Census"
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a sixth set with 18 bids from five bidders sold on March 22 for $ 925.99
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298:"Mix-up at Royal Mint creates dateless 20p pieces worth £50"
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328:"Mint's goofs send value of 2010 Olympic coins soaring"
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coins. The Lunar Horses were struck with the denticled
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133:featured several mules which entered circulation.
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138:2000 Sacagawea dollar – Washington quarter mule
207:"A Pair of Royal Mint Mules Spurs Speculation"
87:, were struck using the reverse from the 2008
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151:. This coin was struck on a Sacagawea dollar
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264:"Price of medal mule soars toward $ 1,000"
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330:. Vancouver Sun. 30 November 2007.
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173:business strikes in circulation.
123:Royal Canadian Mint Olympic coins
334:from the original on 5 July 2010
308:from the original on 2 July 2009
217:from the original on 17 May 2014
205:Morgan, Charles (7 March 2014).
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140:. It features the obverse of a
101:Coins of the New Zealand dollar
35:is a coin or medal minted with
296:Bingham, John (29 June 2009).
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23:An example of a Heraclius mule
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262:Potter, Ken (7 April 2009).
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359:. July 2017. Archived from
16:Type of coin in numismatics
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108:dateless British 20 pence
79:reported that some 2007
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147:and the reverse of a
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127:2010 Winter Olympics
119:Winter Olympic coins
106:In June 2009 a rare
37:obverse and reverse
191:Numismatics portal
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73:In February 2009,
58:In March 2014 the
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83:medals, from the
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367:18 February
247:(2549): 1.
97:New Zealand
95:In 1967, a
29:numismatics
387:Categories
338:8 February
241:Coin World
177:References
142:Washington
76:Coin World
60:Royal Mint
168:feathers.
131:Vancouver
85:U.S. Mint
68:Britannia
64:Britannia
332:Archived
306:Archived
278:10 April
221:10 March
215:Archived
211:CoinWeek
153:planchet
312:29 June
250:sets...
393:Coins
369:2018
340:2010
314:2009
280:2009
223:2014
117:The
48:mule
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