1美元硬币
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[编辑] Pre-Revolutionary dollar coinsBefore the Revolutionary War, Spain minted silver "dollar" coins (also called pieces of eight or eight reales) in Mexico with silver mined from Central American mines. Theses coins were in abundant supply in the United States and were the coin of the realm after the failure of the Continental--America's first attempt at paper money. The failure of the Continental had caused a distrust of paper money among both the politicians and the populace at large. The letters of Thomas Jefferson indicate that he wished the United States to eschew paper money and instead mint coins of similar perceived value and worth.[1] [编辑] 早期美元硬幣 (1794年；1803，1804年)The U.S. Mint produced silver dollar coins from 1794年 to 1803年, then stopped regular production of silver dollars until 1836年. Original silver dollars from this period are highly prized by coin collectors and are exceptionally valuable, especially the 1804 silver dollar, which is one of the rarest and most famous coins in the world. The silver dollars actually struck in 1804年 were dated 1803年. (In those days, the practicalities of re-using old dies which were in relatively good condition outweighed all else.) The "actual" 1804年 silver dollar (that is, the coin dated 1804年) was produced in 1834年, when the U.S. Department of State decided to produce a set of U.S. coins, to be used as gifts to rulers in 亞洲 in exchange for trade advantages. At that time, silver dollar coins had last been produced in 1804, and hence, the coins struck for these sets were given the date of 1804年. Only 15 silver dollars with the date of 1804年 are known to exist; 在1999年，one of them sold at 拍賣 for more than $4 million. [编辑] Seated Liberty dollar (1840至1873年)[编辑] Gold dollar coins (1849–1889)[编辑] Trade Dollar (1873–1885)[编辑] Morgan dollar (1878至1904年；1921年)
Morgan silver dollars were minted between 1878年 and 1921年, with a notable break between 1905年 and 1920年. The 1921-dated coins are the most common, but there exists a substantial collector market for pristine, uncirculated specimens of the rarer dates and mint marks. Morgan dollars are second only to Lincoln Cents in collector popularity. The large size, design and inexpensive nature of most dates of the Morgan dollar makes them highly popular. The coin is named after George T. Morgan, its designer. Some people collect Morgan dollars by "VAM" designation. The top 100 VAM varieties are highly collectible. The mint mark is found on the reverse below the wreath, above the 'O' in 'DOLLAR'. The "king" of the Morgan dollars is the proof-only 1895年 with no mint mark (struck at the Philadelphia mint), which sell for $10,000 or more. Since the rarity of the coin was not initially realized, and since the coins were available at the Mint for a modest premium from face value, circulated, or "impaired" specimens are known. Most early Morgan dollars from the Carson City mint (with the CC mintmark) are worth a premium. Other rare dates include 1892-S, 1893, 1893-O, 1893-S, 1894, 1894-S, 1895-O, 1895-S, 1902-S, 1903-S, 1903-O, and 1904-S all coming in over $100 in circulated (very fine) condition. Many coins exceed $100 in uncirculated condition, but the majority do not. A common date in uncirculated can normally be found for around $20, and often as little as $8 circulated and $12 uncirculated. High-grade Morgan dollars could be considered "investor" coins. This is because the price is very volatile, and the prices set for certified ("slabbed") pieces are set on well-established exchanges. Sight-seen trading often exceeds these sight-unseen prices, but the fact that the sight-unseen prices are posted is seen as a boon to investors. A Belly button Dollar is a variety of the 1884年 silver dollar which has a depression on the eagle's lower abdomen, forming what appears to be a belly button, caused by a flawed die. [编辑] 和平美元(1921至1928年；1934至1935年)
和平美元於1921年首次面世，由 medalist Anthony de Francisci設計以紀念美國與德國、奧地利之間簽署正式的和平條約，因此結束美國在第一次世界大戰，官方與這兩個國家的敵對關係。在1922年，造幣廠使銀元生產得到最優先權，而令在這一年的其他面額卻被節約生產。生產在1928年之後臨時停止。原本的計畫是停止一年，但因為大蕭條而延長。最後，於1934年恢復，但只維持了兩年。 在1965年, a small run of 和平美元 was produced, all at the Denver Mint and dated 1964年; however, plans for completing this coinage were then abandoned, and all those already minted were melted, with no known specimens being preserved or released either for circulation or collection purposes. If it did exist, this coin would be illegal to own and be subject to confiscation. It is unknown whether they had a 'D' mint mark [编辑] Transition: Release of coins by the TreasuryDue to the size and weight of the coins, they circulated minimally (more commonly in the West), except at casinos, where they were commonly used both at the tables and at slot machines. Accordingly, the Treasury maintained huge stocks of the coins. When the price of silver rose, the public exchanged large quantities of Silver Certificates for Morgan and Peace Dollars (causing many dates once thought rare to become less so). The Treasury quickly moved to limit, and by 1967 eliminate, the exchange of notes for silver. Following this, the Treasury began to inventory its remaining stock of dollars, and found it had a large number of Carson City mint Morgan dollars, which even then carried a premium. In 1973, the Treasury placed them in individual holders and invited the public to bid on them. The sale was a success. Over the years, many coins have been broken out of the special holders for purposes of grading or otherwise. [编辑] Eisenhower dollar (1971–1978)
From 1971 to 1978, the U.S. Mint issued dollar coins with the obverse depicting Dwight D. Eisenhower and the reverse the insignia of the Apollo 11 moon landing, both designed by Chief Engraver Frank Gasparro. The 1976 Bicentennial commemorative design, produced in 1975 and 1976, featured the Liberty Bell and the Moon on the reverse (designed by Dennis R. Williams), while retaining the Eisenhower obverse. The Eisenhower dollars contained no silver or gold, but were instead composed of the same copper-nickel clad composition used for the dime, quarter, and half dollar. This made the coins extremely resistant to wear and, like the smaller denominations, they still retain a good deal of shine even when subject to mass usage. The coins were never very popular, primarily due to their large size and weight which made them inconvenient to carry and the fact that very few vending machines were designed to accept them. They saw the greatest use in casinos, and one-dollar tokens in United States casinos still approximate the size and weight of the coins. Prior to the withdrawal of the coins, which remain legal tender, many casinos did not strike their own tokens, but instead used the Eisenhower dollar. [编辑] Anthony dollar (1979–1981; 1999)
For the short duration of 1979 to 1981, the Mint produced Anthony Dollars, depicting Susan B. Anthony, the first non-fictitious woman portrayed on circulating US coinage. (Many earlier circulating coins featured images of women, but the women depicted were all non-specific representations of Liberty. Spain's Queen Isabella was portrayed along with Christopher Columbus on the 1893 World's Columbian Exposition commemorative half dollar, but it was not a circulating coin.) The Anthony dollars, like the Eisenhower dollars, were made from a copper-nickel clad. The 1981 coins were issued for collectors only, but occasionally still show up in circulation. Susan B. Anthony dollar coins were sometimes referred to as "Carter quarters". This was a snide reference to both the deterioration of the value of the dollar during Jimmy Carter's term and the Anthony dollar's strong physical resemblance to the quarter, often causing it to be mistakenly spent as such. They were quickly discontinued, but were resurrected in 1999 when the Mint decided its reserves of dollar coins were getting low (and the Sacagawea dollar was still a year away from production). While reserves of the coins were initially high, the coins were in demand to be used as change in vending machines, most often in transit systems and post offices. [编辑] Sacagawea dollar (2000–Present)
The obverse was designed by artist Glenna Goodacre, using Shoshone Randy'L He-dow Teton as a model for Sacagawea.[2] There are approximately 1 billion Sacagawea coins in circulation and about 250 million more in reserve. The United States Mint greatly reduced production of Sacagawea dollars after the 2001 minting, citing sufficient inventory. As of 2006, the dollar is still being minted for collectors, and is available in Uncirculated Rolls, Mint Sets, and Proof Sets, but has not been released for general circulation since 2001. The Mint took great care to create the coin with the same size, weight, and electromagnetic properties as the Anthony dollar, but with a golden color. Unfortunately, the selected alloy has a tendency to tarnish quite severely in circulation (unlike Canadian dollar coins, which retain their yellowish appearance in circulation), ruining the "golden" effect. This was corrected in 2007, when Sacagawea dollars started receiving the same treatments to prevent tarnish that were applied to the presidential dollar coins (see below). As of 2006, dollar coins are seldom encountered in commerce in the United States, except in vending machines dispensing tickets, tokens, or cards for rides on mass transit in or near large cities (which offer the coins as change from a $5 or larger bill where necessary) and at some casinos, where they are used in slot machines. They are also given as change in U.S. Postal Service stamp vending machines at post offices and elsewhere. However, the Sacagawea dollar has achieved popularity in Ecuador, where the US dollar is also the official currency. [编辑] Presidential Dollar Coin Program (2007–)Image:George Washigton Presidential $1 Coin obverse.png
Obverse of the first coin in the Presidential Dollar Coin Program
In December 2005, Congress decided to create a new series of $1 coins which will honor the former U.S. Presidents. Beginning in 2007, four new coins will be produced per year, honoring the Presidents in order of service. (Grover Cleveland will be on two coins, since he served two non-consecutive terms.) The Presidential $1 Coin Act is intended to create renewed interest in the coin like that seen during the 50 State Quarters program.[3] At least one third of all dollar coins produced are still Sacagawea coins, with the remaining coins making up the four Presidential coins annually. Under federal law (31 U.S.C. § 5112), no coins may be issued featuring a living President, or a President who died less than two years earlier. The program will run until at least 2016 with the coin commemorating Ronald Reagan, but may continue longer depending on the longevity of the currently living former Presidents, and the longevity of the current President or Presidents yet to be elected. The Presidential dollar coin is similar in size and color to the Sacagawea, but bears no inscription on the obverse (or face) side. "In God We Trust", "E Pluribus Unum", the issue year, and the mint mark appear on the edge.[4] The fact that these national mottos appear on the edge has caused some conservative commentators to decry the designs.[5][6] The first dollar, honoring George Washington, was released into circulation on 15 February 2007. A common[7] minting error on this coin is the omission of the edge lettering; instead, the outside edge of the coin is plain. Because the omission includes the words "In God We Trust", some in the popular media have dubbed it the "godless" coin. A false (although at one time widely reported) error is the report that the edge lettering is upside down. The edge lettering does not occur at the same time as the minting of the coins, allowing for the natural occurrence of the lettering in either orientation. [编辑] List of designs
[编辑] See also[编辑] References[编辑] Books and articles
[编辑] Web-based information
[编辑] 外部連結
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