| Country: | United States |
| Denomination: | Washington quarter / Sacagawea dollar mule |
| Value: | .25 and 1 United States dollar (different face value inscribed on each side) |
| Mass: | 8.100 |
| Mass Troy Oz: | 0.26 |
| Diameter: | 26.49 |
| Diameter Inch: | 1.043 |
| Thickness: | 2.00 |
| Thickness Inch: | 0.079 |
| Edge: | Plain |
| Composition: | Core: 100% Cu Cladding: 77% Cu, 12% Zn, 7% Mn, 4% Ni Overall: 88.5% Cu, 6% Zn, 3.5% Mn, 2% Ni[1] |
| Years Of Minting: | 2000 |
| Mint Marks: | P |
| Obverse: | 2000 Washington Sacagawea dollar mule obverse.jpg |
| Obverse Design: | George Washington |
| Obverse Designer: | John Flanagan (original) / William Cousins (modification to Flanagan's design) |
| Obverse Design Date: | 1999 |
| Reverse: | 2003 Sacagawea Rev.png |
| Reverse Design: | Soaring eagle |
| Reverse Designer: | Thomas D. Rogers |
| Reverse Design Date: | 2000 |
The 2000 Sacagawea dollar – Washington quarter mule is an error coin featuring the obverse of a Washington quarter (specifically a 50 State quarter) and the reverse of a Sacagawea dollar struck on a gold-colored dollar coin planchet. It is one of the first known authentic mule coins to be released into circulation by the United States Mint.[2]
Mule coins were deliberately produced by US Mint employees for sale to coin collectors in the mid-1800s.[3] However, no authentic (accidental) mules of United States currency were known to exist. This changed in the 1990s, when a Lincoln cent (dated 1993-D) with the reverse of a Roosevelt dime were discovered.[4] In 2000, Frank Wallis of Arkansas discovered a Sacagawea dollar with the obverse of a Washington quarter.[5]
As of September 2019, 19 examples have been confirmed, 16 of which are owned by a coin collector named Tommy Bolack.[6] [7] Three different die pairs have been identified among the examples.
| Coin | Die pair | Discovered | Notes | |
|---|---|---|---|---|
| 1 |
| May 2000 | The "Discovery" specimen, owned by Tommy Bolack. Graded MS-66 by the PCGS. | |
| 2 |
| before July 2000 | Owned by Bolack. Graded MS-67 by the NGC. | |
| 3 |
| before August 6, 2000 | Owned by Bolack. Graded MS-66 by the NGC. | |
| 4 |
| before September 2000 | Graded MS-65 by the PCGS. | |
| 5 |
| September 2000 | Graded MS-67 by the NGC. | |
| 6 |
| June 2000 | Owned by Bolack. Graded MS-66 by the PCGS. | |
| 7 | Unknown | July 2000 | Owned by Bolack. Graded MS-64 by the NGC. | |
| 8 |
| before June 2001 | Owned by Bolack. Graded MS-66 by the PCGS. | |
| 9 |
| before June 2001 | Owned by Bolack. Graded MS-65 by the PCGS. | |
| 10 |
| summer 2000 | Owned by Bolack. Graded MS-65 by the NGC. | |
| 11 |
| before July 2011 | Graded MS-67 by the NGC. | |
| 12 |
| before August 2012 | Owned by Bolack. Graded MS-67 by the NGC. | |
| 13 |
| before 2005 | Owned by Bolack. Graded MS-67 by the NGC. | |
| 14 |
| before January 2013 | Owned by Bolack. Graded MS-66 by the PCGS. | |
| 15 |
| before July 2016 | Owned by Bolack. Graded MS-66 by the PCGS. Featured colorful toning. | |
| 16 |
| before May 2017 | Owned by Bolack. Graded MS-66 by the PCGS. | |
| 17 |
| before March 22, 2018 | Owned by Bolack. Graded MS-67 by the NGC. | |
| 18 |
| before January 10, 2019 | Owned by Bolack. Graded MS-67 by the NGC. The die pairing is not noted on the NGC label. | |
| 19 |
| before March 2017 | Owned by Bolack. Graded MS-67 by the NGC. The die pairing is not noted on the NGC label. |