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American Innovation Dollar
American Innovation dollars are Dollar coin (United States), dollar coins of a series minted by the United States Mint beginning in 2018 and scheduled to run through 2032. It is planned for each member of the series to showcase an innovation, innovator, or group of innovators from a particular state or territory, while the obverse features the Statue of Liberty (''Liberty Enlightening the World''). History Legislation authorizing the American Innovation $1 Coin Program was approved by the United States Senate on June 20, 2018, amending an earlier United States House of Representatives, House bill, and the Senate-amended bill was approved by the United States House of Representatives, U.S. House of Representatives on June 27, 2018. It was signed into law by President Donald Trump on July 18, 2018. The program was officially launched on December 14, 2018, with the release of a special introductory coin commemorating George Washington's signing of the first United States Patent and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Dollar
The United States dollar (Currency symbol, symbol: Dollar sign, $; ISO 4217, currency code: USD) is the official currency of the United States and International use of the U.S. dollar, several other countries. The Coinage Act of 1792 introduced the U.S. dollar at par with the Spanish dollar, Spanish silver dollar, divided it into 100 cent (currency), cents, and authorized the Mint (facility), minting of coins denominated in dollars and cents. U.S. banknotes are issued in the form of Federal Reserve Notes, popularly called greenbacks due to their predominantly green color. The U.S. dollar was originally defined under a bimetallism, bimetallic standard of (0.7734375 troy ounces) fine silver or, from Coinage Act of 1834, 1834, fine gold, or $20.67 per troy ounce. The Gold Standard Act of 1900 linked the dollar solely to gold. From 1934, its equivalence to gold was revised to $35 per troy ounce. In 1971 all links to gold were repealed. The U.S. dollar became an important intern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coin World
''Coin World'' is an American numismatic magazine, with weekly and monthly issues. It is among the world’s most popular non-academic publications for coin collectors and is covering the entire numismatic field, including coins, paper money, medals and tokens. Founding and early history (1960–1962) ''Coin World'' was founded as a weekly publication in 1960 by J. Oliver Amos, a seasoned publishing professional from the third generation of newspaper publishers. Amos took his experiences in producing the '' Sidney Daily News'' to the coin field, applying what he learned from printing ''Linn's Stamp News''. In 1960, the concept of a weekly coin publication was new. On the 25th anniversary of' ''Coin World'' in 1985, Amos related that he saw, "all the opportunities which could be developed from a weekly presentation – club meetings all over the country, personalities, and many other ideas that we had learned in publishing ''The Sidney Daily News'' as a community newspaper." Wit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Puerto Rico
; abbreviated PR), officially the Commonwealth of Puerto Rico, is a Government of Puerto Rico, self-governing Caribbean Geography of Puerto Rico, archipelago and island organized as an Territories of the United States, unincorporated territory of the United States under the designation of Commonwealth (U.S. insular area), commonwealth. Located about southeast of Miami, Miami, Florida between the Dominican Republic in the Greater Antilles and the United States Virgin Islands, U.S. Virgin Islands in the Lesser Antilles, it consists of the eponymous main island and numerous smaller islands, including Vieques, Puerto Rico, Vieques, Culebra, Puerto Rico, Culebra, and Isla de Mona, Mona. With approximately 3.2 million Puerto Ricans, residents, it is divided into Municipalities of Puerto Rico, 78 municipalities, of which the most populous is the Capital city, capital municipality of San Juan, Puerto Rico, San Juan, followed by those within the San Juan–Bayamón–Caguas metro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Francisco Mint
The San Francisco Mint is a branch of the United States Mint. Opened in 1854 to serve the gold mines of the California gold rush, in twenty years its operations exceeded the capacity of the first building. It moved into a new one in 1874, now known as the Old San Francisco Mint. In 1937 Mint operations moved into a third building, the current one, completed that year. History Original United States Mint and Subtreasury (1854) The San Francisco Mint began operations in 1854 at 608 Commercial Street, just west of Montgomery Street. The building sat between Commercial and Clay Streets and a California Historical Landmark (number 87) plaque can be found today on Commercial. Since June 14, 1970, the building has been listed as a San Francisco Designated Landmark. The mint was established in response to the California gold rush. Within the first year of its operation, the San Francisco mint turned $4 million in gold bullion into coins. Because of the scale of its incre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reverse Cameo
In coin grading, cameo is the amount of contrast between the relief (raised or recessed design) and field (background). Cameo is usually seen on proof coinage, with the relief featuring a frosted finish and the field being mirror-like. Not all proof coins have a cameo effect, however. History Cameos can be found on some of the earliest American proof coins, but have not been produced intentionally for the public until recently. The US Mint, like many mints around the world, now specifically sells cameo coins, which could previously only be found randomly in mint proof sets. Non-proof cameos Though rare, general circulation (non-proof) strikes may exhibit cameo as a result of die polishing. These coins are often designated "PL" (Proof-Like) if the cameo effect is strong enough. Coins with highly mirrored fields may even be designated "DMPL" (Deep Mirror Proof-Like, sometimes shortened to "DPL" or Deep Proof-Like). These designations are found mostly on Morgan Dollars, and ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Proof Coinage
Proof coinage refers to special early samples of a coin issue, historically made for checking the die (manufacturing), dies (as in demonstrating that something is true) and for archival purposes. In modern times, proofs are often struck in greater numbers, especially for coin collecting, coin collectors (numismatists). Nearly all countries have issued proof coinage. Preparation of a proof striking usually involved polishing of the dies. They can usually be distinguished from normal circulation coins by their sharper rims and design, as well as much smoother "fields"— the blank areas not part of the coin's design. The dies for making modern proof coins are often treated with chemicals to make certain parts of the design take on a frosted appearance, with the polished fields taking on a mirror finish. Several other methods have been used in the past to achieve this effect, including sand blasting the dies, and matte proofs. Proof coins of the early 19th century even appear to b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Denver Mint
The Denver Mint is a branch of the United States Mint that struck its first coins on February 1, 1906. The mint is still operating and producing coins for circulation, as well as mint sets and commemorative coins. Coins produced at the Denver Mint bear a D mint mark (as did the Dahlonega Mint, which closed before the Denver branch opened). The Denver Mint is the single largest producer of coins in the world. History Clark, Gruber & Co. The predecessors of the Denver Mint were the men of Clark, Gruber and Company. During the Pikes Peak Gold Rush, they coined gold dust brought from the gold fields by the miners. In 1858, Austin M. Clark, Milton E. Clark and Emanuel Henry Gruber founded a brokerage firm in Leavenworth, Kansas, and then established an office in Denver at the beginning of the Colorado Gold Rush. Desiring to save on shipping and insurance costs associated with shipping gold back east, the firm opened a private mint. On July 25, 1860, the mint opened in a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philadelphia Mint
The Philadelphia Mint is a branch of the United States Mint in Philadelphia. It was built in 1792 following the Coinage Act of 1792, in order to establish a national identity and the needs of commerce in the United States, and is the first and oldest national mint. History First building (1792–1833) The Coinage Act of 1792 entered into law on April 2, proclaiming the creation of the United States Mint. Philadelphia at that time was the nation's capital, and the first mint facility was built there. David Rittenhouse, an American scientist, was appointed the first director of the mint by President George Washington. Two lots were purchased by Rittenhouse on July 18, 1792, at Seventh Street and 631 Filbert Street in Philadelphia for $4,266.67. The next day, demolition of an abandoned whiskey distillery on the property began. Foundation work began on July 31; by September 7, the first building was ready for installation of the smelting furnace. The smelt house was the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Potassium Carbonate
Potassium carbonate is the inorganic compound with the formula . It is a white salt, which is soluble in water and forms a strongly alkaline solution. It is deliquescent, often appearing as a damp or wet solid. Potassium carbonate is mainly used in the production of soap and glass. Commonly, it can be found as the result of leakage of alkaline batteries. Potassium carbonate is a potassium salt of carbonic acid. This salt consists of potassium cations and carbonate anions , and is therefore an alkali metal carbonate. History Potassium carbonate is the primary component of potash and the more refined pearl ash or salt of tartar. Historically, pearl ash was created by baking potash in a kiln to remove impurities. The fine, white powder remaining was the pearl ash. The first patent issued by the US Patent Office was awarded to Samuel Hopkins in 1790 for an improved method of making potash and pearl ash. In late 18th-century North America, before the development of baking pow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Potash
Potash ( ) includes various mined and manufactured salts that contain potassium in water- soluble form.Potash , USGS 2008 Minerals Yearbook The name derives from ''pot ash'', plant ashes or soaked in water in a pot, the primary means of manufacturing potash before the Industrial Era. The word '''' is derived from ''potash''. Potash is produced worldwide in amounts exceeding 71.9 million |
United States Patent And Trademark Office
The United States Patent and Trademark Office (USPTO) is an List of federal agencies in the United States, agency in the United States Department of Commerce, U.S. Department of Commerce that serves as the national patent office and trademark registration authority for the United States. The USPTO's headquarters are in Alexandria, Virginia, after a 2005 move from the Crystal City, Virginia, Crystal City area of neighboring Arlington County, Virginia, Arlington, Virginia. The USPTO is "unique among federal agencies because it operates solely on fees collected by its users, and not on taxpayer dollars". Its "operating structure is like a business in that it receives requests for services—applications for patents and trademark registrations—and charges fees projected to cover the cost of performing the services [it] provide[s]". The office is headed by the Under Secretary of Commerce for Intellectual Property, under secretary of commerce for intellectual property and directo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
